Do-it-yourself Opel ecu repair

In detail: do-it-yourself Opel ebu repair from a real master for the site my.housecope.com.

OPEL Astra, Corsa, Vectra and a number of others with ceramic engine control units installed. The most common failure of ceramic blocks is the appearance of sporadic or non-erasable errors on various sensors. The reason for this is the not very good location of the block in the engine compartment on the engine. The unit is constantly exposed to vibrations transmitted from the engine.

Reports on the repair and restoration of ECUs ("brains") of Opel cars:

Malfunctions of the electronic engine control unit on OPEL vehicles. One of the malfunctions is associated with problems in the operation of the accelerator of the gas pedal. At the same time, the car does not respond to the gas pedal, or the reaction is slow and the car is in emergency mode. Does not accelerate, loss of power, “Check Engine” lamp comes on. Computer diagnostics on one of the cars Opel Vectra B 1.8L Z18XE 2001 showed the following errors:

P0120 - Throttle sensor / pedal position A - malfunction.
P1525 - Throttle valve actuator - malfunction.
P1550 - Throttle actuator motor - System or component in alarm condition.
P0683 - Preheating relay control. Malfunctioning spark plug.
P0603 - ECU. Memory device error or electrical failure.

The cause of this malfunction is in the “brains” of the motor control. We restore ECUs with such faults with a guarantee!

In addition, it is possible ignition malfunctions - these are misfires, the absence of a spark in one or more cylinders. It is also possible to eliminate such irregularities. Typical errors:

Video (click to play).

P0300 - Ignition misfires detected.
P0301 - Cylinder 1. Ignition misfires detected.
P0302 - Cylinder 2. Ignition misfires detected.
P0303 - Cylinder 3. Ignition misfires detected.
P0304 - Cylinder 4. Ignition misfires detected.

Summing up, I would like to say that Opel cars, on which "brains" are installed, made using hybrid technology, failure of any sensor or executive component is possible after 8-10 years of operation.

Malfunction of the electronic control unit for the high-pressure fuel pump of the injection pump on OPEL vehicles with a diesel engine. A typical manifestation of a malfunction of OPEL cars with Isuzu injection pump ECU is that the car starts, runs and stalls after a few minutes. Difficulty starting the engine. Over time, the car stops starting. No signal to control the injection pump valve. Computer diagnostics show error 0251.

The owner of the car contacted us with such a typical malfunction. Checks at one of the service stations in our city revealed that the problem is in the injection pump control unit. Soon, the ECU was brought to our craftsmen. After a visual check of the injection pump ECU, a poor soldering contact of the throttle output in the 130V voltage circuit was found. Within a couple of hours, the block was cured, the place of cold soldering was cleaned and soldered. This fairly simple unit malfunction saved the owner several thousand rubles and time. As a rule, it takes more time to find more complex causes of a malfunction.

Malfunction of OPEL vehicles with injection pump ECU PSG5, VP30, VP44 is accompanied by the inability to start the engine. Computer diagnostics show errors associated with the pump control circuit.

Siemens Simtec 71, 71.1, 71.5

09115113 09146052 09158670 09158689 09158726 09179499 09115113 09146052 09158670 09158689 09158725 09158726 09179499 13105214 13105214 14443879 24442542 24443879 24426542 24442542 2444387 55351702 55351703 55351751 55351752 55352666 55351702 55351703 55351751 55351752 55352666 55355044

Delphi Delco HSFI 2.1-HSFI 2.5

09353459 09353469 09353479 09353489 09353509 09353529 09364479 09364499 09388990 09389429 09391249 09391269 09391340 09391899 12201589 12211330 i 12212819 12214089 12214800 12214820 1221483 12214840 12214850 12214860 12214870 12220823 12223620 12223650 12227249 12230554 12237450 12242020 12245500 12249831 24463784 5534782 55354782 9353489 9353509 9364469 94580122 96394312 DMKI DNHD DNZY DRTJ DZLUGM 8972333707 12214880 12242000 55354782 DHZJ DJT JTY 09353509 HSFI-2.1 1.6L 8V Z16SE, DLSP 09353459 HSFI-2.1 Z16XE 1.6L, Isuzu 8973065750 12212819 Y17DT, DHUC 9353509, 9391340, 6235008 AZ, DXZ16 09HE354 DPAB 09353489, DNZZ 09353469, DASB 09353529, DBPB 09353529, DXBC 12214830, Delco 09391340, 9391340, 6235008, DNHL 12214850, DWLZ 12214820, DMKP 09353489 DHZJ 09353459; DLSP 09353459; DSAZ 12223610; DNHL 12214850; DXMH 12242030

55559394 55563496 55568735 55563495 55567114 55560130 55564081 55355631 (5WK9407) 12992406 (5WK9395)

0261208396 55558787 0261207722 24420562 0261208253 55352622 55354330 061208255 55353613 0261208394 55354328 55354330 0261208940 55557933 0261208941 0261207721 24420560 55354330 6235399 55353612 0261208256

We will repair electronic control units for Opel cars, repair dashboards for Opel cars, restore electronic control units for high-pressure fuel pumps and ABS for OPEL cars, repair control units for high-pressure pumps Opel / Isuzu. We also repair and restore other ECUs of most manufacturers.

To contact us with a faulty control unit, you need collect and provide the following information.

or e-mail and get a consultation regarding the repair of OPEL electronic control units.

Repair and restoration of ECU on requests from regions it is possible to decide without the participation of the car. ECUs are sent by regular mail, transport company or courier delivery.

In the life of every car owner, especially if he is the owner of an inexpensive and old foreign car, there comes a moment when on the car dashboard the icon lights up Check - check the car engine.

One of the reasons for this malfunction on Opel Astra G and H cars is the failure of the ECU (electronic control unit for the car). It is about the brain of Astra that will be discussed in our today's article.

Opel Astra ECU G and H- what models are installed

The petrol engine Z 18 XER DOHC-I is equipped with an electronic engine management system Simtec 75.1 EMS manufactured by Siemens VDO.

Opel Astra ECU repair - wire soldering

The Opel Astra ECU provides camshaft position adjustment and engine temperature control. To perform these functions, the computing power has been increased and additional sensors have been installed.

The design of the control unit located on the intake module has been improved. A new crankshaft sensor and two camshaft control valves for the intake and exhaust valves are used. In addition, a new throttle body is installed with heating from the coolant circuit. Electronic engine control module Simtec 75.1 located on the intake manifold housing and secured by four threaded bushings.

Technical features of the Opel Astra ECU G and H - table

The engine management system has the following differences from the Z 18 XE and Z 16 XEP engine systems:

installed PCB - printed circuit board;
a second camshaft sensor is installed;
a second temperature sensor is installed.

Now I would like to touch on the topic of common malfunctions found on the Opel Astra G and H ECUs

Common malfunctions of the Opel Astra ECU arise for the following reasons:

mechanical damage. The engine control unit is damaged from shocks and strong vibrations, which contribute to the appearance of microcracks in its circuits and housing;
sharp jumps in temperature, as a result of which the engine control unit itself overheats;
corrosion;
depressurization and ingress of moisture into the ECU case;
interference in the work of a block of people who do not have the necessary skills;
the so-called "lighting" from a car with a running engine;
rearrangement of terminals when connecting the battery;
starting the starter without a connected power bus.

This is what the Opel Astra G ECU chip looks like

All of the above factors affect the efficiency of the engine control unit in different ways. Some of them cause minor harm to the “brains” of the car, while others can instantly break the block. Fortunately, there is still a way to prevent the final breakdown of the unit - ECU diagnostics, which should be performed at least once a year.... This is the only way to save on expensive part repair or complete replacement.

In most cases, self-repair of the Opel Astra ECU is impossible, therefore, now I will give you step-by-step instructions for parsing and removing.

Error P0230 of the fuel pump relay has appeared. I tend to repair the ECU 99%. Tell dear members of the forum how to solder the jumpers from ceramics to the connector. who came across please respond. or give a link on the repair of these blocks

vidamotors, yes I know that there are no air conditioners))) Sealed a little! -)
And if this capacitor is soldered, will it be better or worse?

Thanks for the advice plow,)) So these remnants of the jumpers interfere with soldering? I have a pancake solder to hold on for two, three trips and a couple of contacts, yes it will fail (

here is Z-18, you completely get rid of the gel, you clean the areas, take an active flux, a little patience and there will be happiness! It is imperative that the entire connector must be soldered, half measures will not puncture.

Yes, even ration-)) Have you tried contact spot welding?

The guys here wrote that somewhere there is an ECU circuit on the Autodate, like, I didn't find it!

Members of the forum help out. I ask for help. The situation is this: two tracks on the ceramic board “burned out”, in general they became unusable (((ECU Z18XE These are the ones in the first photo, on the right of the Third and Fourth over the capacitor! what conductors to solder them. /35/wp-content/uploads/ext/2733/i130/1502/ea/54aa95370106.jpg

Guys, tell me please! such a question Siemens Z18XE ECU. This contact is not soldered https://my.housecope.com/wp-content/uploads/ext/2693/i637/1502/0a/838b289ca128.jpg It does not ring on the capacitor, if it goes somewhere else, there is no contact! Tell me where you can solder it, on which conduit or where? The sputtering is already barely alive on this contact does not hold at all!

I soldered with ordinary thin POS61 and acid flux FTCA. walks for more than a year and nothing falls off. only it must be washed off. I washed it off with ordinary alcohol-gasoline.

I will put in my 5 kopecks, as I was worn out in my time with these blocks.
About the gel.
There are two ways. I tried only one myself.
1. I use YaXun oil-base wash. Dissolves gel well. Then it is simply washed off with alcohol. No sticks. Contacts are not mechanically affected. The board is clean.
2. Before Chinese chemistry came to our market, people used a polyurethane foam remover. I will not vouch - I have not tried it.
Before that, I had tried everything: alcohol, acetone, gasoline, kerasin, nitro solvents, hydrochloric and sulfuric acid (alas, there was no nitrogen), aqua regia, a temperature of 480 grams. Uselessly.

About soldering. I solder the contacts on the comb with the usual POS-61 with aluminum flux (with thorough rinsing). On ceramics it is possible with flux on aluminum, it is possible with ordinary rosin and so and so it takes (of course, with washing).

It was once on the block from the X18XE-1 that two contacts from the flash drive to the ceramic (thinner than a hair) came off. Nothing, soldered - a microscope and a soldering iron with a very thin attachment + a tripod.

But, IMHO, all the same, all such shares do not go for a long time.

BlackRaven, shamanroman, thank you guys for responding!)) Very useful information that is very difficult to find.
To summarize: How to solder and with the help of what (solders and fluxes) the information was received and everything is clear! If, of course, someone can advise some kind of miracle flux, this will not be superfluous!

The experts also explained what conductors to use!
Now we even know how to dissolve this terrible and terrible gel. Thanks BlackRaven
The question of the option to solder the conductors to "blocking capacitors" remains unanswered. The fact is that there are more conductors than conductors, and if it is not possible to solder a conductor to a ceramic pad and the conductor is not called - what to do.

If someone has experience in this matter or schemes, even sketched by themselves, photographs, please share your hard-to-reach experience!

I solder such blocks with an active F-2000 Kharkov flux and at a temperature of 320-330 degrees, the solder is the most common, at the reciprocal pads there is a coating of an incomprehensible composition that is poorly soldered but copper underneath it, it takes 2 hours to one side of the block

Thank you very much valentin_

madtubes, do you mean the contacts on the plastic connector?

yes, in all the blocks that were opened there under the cover of a copper

Message from BlackRaven:
I will put in my 5 kopecks, as I was worn out in my time with these blocks.
About the gel.
There are two ways.I tried only one myself.
1. I use YaXun oil-base wash. Dissolves gel well. Then it is simply washed off with alcohol. No sticks. Contacts are not mechanically affected. The board is clean.
2. Before Chinese chemistry came to our market, people used a polyurethane foam remover. I will not vouch - I have not tried it.
Before that, I had tried everything: alcohol, acetone, gasoline, kerasin, nitro solvents, hydrochloric and sulfuric acid (alas, there was no nitrogen), aqua regia, a temperature of 480 grams. Uselessly.

But, IMHO, all the same, all such shares do not go for a long time.

description as close as possible to the ideal. I disagree only with the last phrase.

IMG_1558.JPG

Class

is there someone who can do such a procedure near Belgorod?

at first the dprv was buggy, then the reversing lamps began to burn then not to burn now the working nozzle does not work is it all brains? vectra c z18xe

Hello good people, help me please! I want to repair an ecu from Opel, do not tell me if there is a special soldering iron for soldering antennae. Here is shown in the photo with a red arrow .. Thank you in advance. can be by mail

Guys, do not tell me where the contact marked with a circle goes?

Confused, this contact is needed.

I figured out who can come in handy - in the photo the resistor is 3.77 k

I understand everything, of course, but not to fill in the same messages for myself, I copied my old post 1 to 1

In general, it is better to experiment with active acid-based fluxes on corpses, they can be diluted in different ways from batch to batch, once a jar came across, all the etched paths were devoured in half an hour. If there is no corpse, it is better to solder to the conduits - not so beautiful, but it is safe and quite normal to solder with neutral fluxes.

in general you are right, but let's say I always check on an unused site, then the question is different, I have such a piece of iron in which I climbed, tore off the jumper from the board to the transistor, how to solder there? to the transistor itself, what I have not tried, nifiga does not take

I also got a patient only Z16XEP, the car stalled when one of the connectors on the ECU was twitching. The gel was removed with sticks, the rest of the pins was simply ripped off the ceramics and the connector, the jumpers were copper, an ordinary winding wire, the F-5 flux was water-washable, the block was heated up to 50-60 degrees and soldered with an ordinary soldering iron of 25 watts, the solder was ordinary, the most important thing then all at least 2-3 times to view and check. The flux infection boils and raises the remains of the gel, in general, everything worked out.

Good afternoon, but no one has a photo of the contacts of the Z14XE Astra G 2001 block? it is necessary in order to restore the DELHI 09353459 HSFI-2.1 ECU

Z16XE = Z14XE = HSFI-2.1 - the hardware is the same!

Hello everyone. My ECU Repair Story:
Astra Sedan 1,8 XER automatic transmission
In the spring, the arrows of the speedometer and tachometer began to jump from time to time, the battery charging lamp began to light up, the machine began to dull, switch with delays, the auto-neutral stopped working, the condo was periodically cut down, a couple of times the EGUR stopped working when the car was started. Periodically, the car did not start, the relay in the trunk worked, and the starter did not turn. When pedaling, there were 20 different errors that were not related to each other.

When visiting Autoimport on Kolomenskaya, the masters removed the errors and, without explaining anything, recommended driving - like it's Opel ..Well, there are glitches .. As a result, 1400 rubles. for diagnostics, without solving the problem.
In Genser in Zhulebino, the problem was found - a failure of the engine control unit. Discount price 29,500 rubles. waiting for a block from 10 days to a month.

Because the money is not small, we decided to dig into the block, since there is a person who is familiar with electronics and who knew how to solder such a board. The evening was spent on disassembling the “non-separable” ECU block. In principle, they were dismantling in vain, because in the end, as it turned out, the problem is that from the vibrations of the block (standing on the intake manifold) contacts on 2 connectors, which are fixed on top of the block, began to move away. Those. it would be enough to simply "squeeze" the pins inside the block. As a result, the unit was disassembled, the contacts on both connectors pressed a little into the board and soldered them from the back side. The engine started up right away, but by the evening it started to run, as it turned out, during disassembly, one of the resistors (2nd cylinder) that was on the key was broken. There are a lot of parts around the edges of the board, so when removing the block cover, you need to be careful not to break anything.
As a result, the resistor was changed, the car with the key went out, the engine works as before, there were no problems with the box or with the electronics.

Thank you

No thanks

bsa161rus 09 June 2016

Good day!
Opel astra g 2004 Z14XE

Now I scratch my head and think what to do next, the new ECU is definitely not (the price tag is 60,000 rubles). but I've been waiting for 1.5 months.

To everyone who has read to the end, thanks for your patience, I hope that it will be useful to someone.

Thank you

No thanks

bsa161rus 10 June 2016

tmeter, I didn’t try to call Vadim Sorokin. I don’t have contacts for communication (but I have met somewhere here I think this is not a problem) and I don’t know how it works. To begin with, I thought to write off in order to provide as much information as possible about my ECU (photo number or something else) so that a person's brain does not soar in vain. And the fact that “a proven person does with a guarantee” is what I already understood from the forum, and the auto electrician Andrey is probably familiar with him, he also advised him.

tmeter, Thank you for your help!

The engine control unit (ECU) is the brain center of the entire car, it consists of a large number of the most complex connections. With the help of this device, the functions of all elements of the power unit are monitored and coordinated.

Control devices installed on various car models are made of high quality materials, high technologies are used in their manufacture, ensuring high-quality assembly of electronic circuits.

But even the highest quality ECUs are prone to breakdowns and often need urgent repairs.

The design of the ECU is divided into main parts: the main unit, control sensors, actuators of the engine elements. The electronic control includes many special elements:

Malfunctions of the engine control unit lead to an imbalance in the operation of all vehicle systems.

The ECU uses the signals sent by the sensors installed on the powertrain to adjust the composition and amount of fuel entering the engine. In the course of its activity, the engine operating mode is set and the exact dosage of fuel mixtures takes place.

As a result of the controller functioning, the engine operation is stable both in cold and after warming up. It is impossible to start the motor if there is a breakdown in the ECU or if its control signals are absent.

Powerful transistors that are part of the control unit control the operation of the following actuators of the engine and fuel system:

ignition coils of the injection system;
idle speed valve;
electric nozzles;
fuel tank ventilation valve;
electromagnetic coils - solenoids;
turbocharging;
intake-exhaust system;
recirculation of exhaust gases;
cooling system.

The electronic device is an integral part of the on-board equipment of the machine; it is in constant information communication with such important systems:

Anti-blocking system.
Automatic transmission.
Stabilizing system.
Vehicle security system.
Cruise control.
Climate control.

When using this device, the most important parameters are optimized:

fuel consumption;
engine oil consumption;
power characteristics;
torque that affects the acceleration of the car;
the amount of toxic components in the exhaust gases.

The sensors send information to the controller in the form of digital signals. The control and functional calculation modules included in the software analyze the sensor signals and correct the operation of the actuators. Output signals during the adjustment process can even bring the diesel engine to a complete standstill.

When making significant changes in the design of the power unit (tuning), it is possible to reprogram the electronic engine control unit.

The integration of all control units into a common system is carried out using a special bus.

Situations often arise when car owners are faced with the need to repair the engine control unit. Carrying out this type of work with your own hands is possible with certain qualification skills.

Malfunctions in the operation of the control device occur due to a violation of contacts with sensors that monitor the functioning of the engine's working systems:

Anti-lock braking system (vehicle braking control).
Ignition block.
Injector controller.
Throttle position.
Temperature range of the engine.

Mechanical damage, water ingress on the parts of the microcircuit, failed attempts to repair the device with your own hands also lead to breakdown of the electronic control unit.

Loss of contact with the sensors occurs due to the lack of electricity, which indicates the occurrence of an internal malfunction that requires mandatory repair. Signs of lack of contact can be the following:

data is not received from the scanner;
messages contain incorrect parameters;
the control lamp "check" does not light up when the ignition is turned on;
lack of information about unstable engine operation.

Timely identification of defects and repair of electronic engine control units will prevent a stop in the operation of systems, assemblies, and vehicle assemblies.

The list of the most likely causes includes the following factors:

Microcracks in the circuits and body of the device caused by mechanical stress (shock, strong vibration).
A sharp rise in temperature, leading to overheating of the motor control unit.
Destruction of ECU elements under the influence of corrosion.
Penetration of moisture into the controller case due to depressurization.
Illiterate repair actions.
Applying the "lighting" effect while the engine is running to help the neighboring car.
Changing the position of the terminal connections while connecting the battery.
Lack of power bus connection when the starter is turned on.

The efficiency of the ECU fully depends on the listed factors, many of which are capable of causing significant harm to the control device.

To prevent permanent damage, it is necessary to carry out regular diagnostics of the electronic engine control. In order to save on expensive repairs and complete replacement of elements of the electronic control system, the check is carried out at least once a year.

Malfunctions in the engine control unit are indicated by the following vehicle malfunctions:

problems with starting the engine;
tripping the engine;
the appearance of thick smoke;
decreased response to the gas pedal;
interruptions in connection with the ECU;
loss of control over turning on and off the engine fan;
malfunctions of the ignition coils;
failure of fuses;
sensors are not sending signals.

Thanks to the self-diagnosis system built into the ECU, you can check and determine the degree of damage with your own hands. To carry out diagnostic measures, you need to connect to the device using a laptop with an installed program designed to work with diagnostic data. Instead of a laptop, you can use special testers, oscilloscopes.

The data obtained during the measurements are compared with the indicators that are standard.

The causes of damage to the engine control unit are divided into two main types: faulty conductor or firmware failure. The firmware is restored only with the help of specialists in the service center. You can check the electrical parameters with your own hands using a special measuring device - a multimeter.

To search for a breakdown in the wire, you must familiarize yourself with the control device diagram. Having studied the location of the conductors, resistors and power supply, it is the turn of the "continuity" of the electrical circuit in the place where the error in the readings of the electronic unit is detected. In the absence of such information, it is necessary to check the wires throughout the circuit.

To repair the engine ECU, the following operations are required:

Locate the breakdown location.
Re-measure the resistance.
Find the attachment points of the conductor.
Attach in parallel a wire with the required resistance using a soldering iron; it is recommended to leave the old wire in place.

After the measures taken, the system should work stably. If the ECU errors repeat, contact the service center.

The durability, safety and reliability of the vehicle depend on the timeliness of the repair of the engine control unit.

The electronic engine control unit is rightfully considered one of the most important parts of the car. This device is not in vain called the "brains" of a car, because it is entirely responsible for the stability of the operation of almost all vehicle systems.

Every year more and more cars appear on the world market, the reliability and durability of which directly depends on electronic systems. Absolutely all manufacturers are trying to equip cars with the latest ECU models. Along with this, the mechanical components in the car are becoming less and less.

Be that as it may, the use of electronics in the automotive industry is fully justified. ECM manufacturers place great emphasis on the quality of materials and the assembly of their products. That is why the “brains” of a car are extremely rare. But as they say, nothing lasts forever. And even a high-quality ECU will fail sooner or later.

In a wide range of specialists, a list of the most common reasons for which an ECU breaks has long been compiled. These include:

mechanical damage. The engine control unit is damaged from shocks and strong vibrations, which contribute to the appearance of microcracks in its circuits and housing;
sharp jumps in temperature, as a result of which the engine control unit itself overheats;
corrosion;
depressurization and ingress of moisture into the ECU case;
interference in the work of a block of people who do not have the necessary skills;
the so-called "lighting" from a car with a running engine;
rearrangement of terminals when connecting the battery;
starting the starter without a connected power bus.

Many drivers believe that only professionals should be engaged in checking the operation of the engine control unit. In fact, almost every “brain” at the factory is equipped with a built-in self-diagnosis system. With its help, it will not be difficult for even an inexperienced driver to identify any malfunctions with their own hands.The engine control unit is a mini-computer that must perform specialized tasks in real time. The latter can be divided into 3 categories:

processing signals from sensors;

calculation of impacts to control vehicle systems;

adjustment of the operation of executive mechanisms.

To start checking the status of the engine control unit, we need to connect to it. This can be done using a special tester or laptop. On the latter, a program designed to read diagnostic data must be installed in advance. Modern cars are equipped with various ECU models. We will consider the implementation of diagnostics of the engine control unit using the model as an example Bosch M 7.9.7... These are the “brains” that are installed on the latest car models. VAZ and many foreign cars. Image - DIY Opel ecu repair

We will carry out diagnostics with our own hands using a free program KWP-D... In addition to the utility, we need an adapter that supports the protocol KWP2000... We start diagnostics by connecting the adapter. We insert one end of it into the ECU port, and the other into the laptop. After that, turn on the car ignition and start the program. A message should appear on the laptop display stating that the operation to check for errors in the operation of the ECU has begun successfully. After that, we will see a table with the most important parameters of the machine.

It is necessary to pay attention to the DTC section, which contains all the errors issued by the engine. If there are any, then go to the "Codes" section, where we will see the decryption of all existing failures. If you did not find any errors, then the engine is in perfect condition.

Other sections of the table should not be ignored either. The information in them is equally important. So, the UACC parameter is responsible for the state of the battery. Normal readings for this section are in the range of 14-14.5 V. If the voltage of your battery is less - it is worth carefully checking the electrical circuits. Another important parameter is THR, which is responsible for the position of the throttle valve. During normal idling, the throttle position sensor will read 0%. Otherwise, you should contact a specialist.

Another important indicator that interests all drivers is the QT parameter, which is responsible for the amount of fuel consumption. At idle speed, the section should contain figures of 0.6–0.9 l / h. For a more accurate diagnosis, you will need to check the voltage in the car spark plugs. When checking all these indicators, drivers very often ignore the state of the crankshaft during rotation, for which the LUMS_W section is responsible. If the numbers in it are more than 4 rev / s, this is a sign of uneven ignition in the cylinders. It is also worth checking the high voltage wires and candles.

Diagnostics and repair of ECUs is not at all difficult. However, as with any business, you should always be prepared. In the case of a brain test, it will be enough for us to purchase inexpensive devices. They will help you do all the work yourself. The first thing every driver needs to have is an oscilloscope. This device provides the necessary information about the operation of all vehicle systems. Image - DIY Opel ecu repair

The received data is displayed in numerical or graphical form. With the help of an oscilloscope, we can compare the available numbers with standard indicators. The cost of the device is in the region of 2-5 thousand rubles. Another important device is the motor tester. It is designed specifically to determine the performance of electronic engine systems.With its help, you can get information about the drop in revolutions when the cylinders are turned off and the discharge in the intake manifold. The price of the device ranges from 3 thousand rubles.

Do you still think that car diagnostics is difficult? If you are reading these lines, then you have an interest in doing something yourself in the car and really savebecause you already know that:

STO lomat big money for simple computer diagnostics

To find out the error, you need to go to the specialists

Simple wrenches work in the services, but you can't find a good specialist

And of course you are tired of throwing money away, and there is no question of driving around the service station all the time, then you need a simple ELM327 AUTOSSCANER that connects to any car and through a regular smartphone you will always find a problem, pay off CHECK and save a lot.

Video (click to play).

We have tested this scanner ourselves on different machines. and it showed excellent results, now we recommend it to EVERYONE! So that you do not fall for the Chinese counterfeit, we publish here a link to the official website of the AutoScanner.