DIY 4g94 injection pump repair

In detail: DIY repair of fuel pump 4g94 from a real master for the site my.housecope.com.

- = andry = - »Mon, 22 Jun 2009 13:53

2001 Aspire 4G94
The CHECK lights up, error P0190.
Starts up normally, turns on XX do not float.
The rpm does not rise above 4000 in neutral, it twitches during acceleration, barely eats.
The pressure shows in the region of 0.6V at XX.
When the pedal is pressed sharply to the floor, it sneezes, dips appear, and loud bangs are heard.

After cleaning the throttle valve and replacing the mesh in the tank, replacing the fuel filter, two filters for the inlet and outlet, no results.
Candles are normal.
After cleaning, the pressure was checked with a voltmeter on the pressure sensor, in the range from 0.8V - 0.9V at XX, at 3000 rev / s it rises to 1.2V - 1.3V.

And yet, while the CHECK is off, the car “does not go”, as soon as the CHECK light comes on, the car drives as usual, the revs rise briskly.
As soon as the light goes out, it does not gain momentum again, it twitches during acceleration, what can it be?

He took off the injection pump, the nut was unscrewed by hand.
The plates were unsatisfactory, they removed the plaque, cleaned, sanded.
Collected, put back, zero effect.
pressure as it was 0.8 - 1.0 Volts at idle, and remained.
I tried to tighten the pressure bolt on the injection pump, no changes.

Now the P0170 code comes on.
P0190 has not appeared yet, but it's strange why, because the pressure is 1.2 volts.

Please give advice on what else can be done?
There are specialists in Tyumen who have already restored the high-pressure fuel pump, please respond?

Jonnik »Mon, 22 Jun 2009 14:00

For those who are interested in everything in the world.

Message Igor Karpov "05 Dec 2015, 10:04 am

Message Igor Karpov »05 Dec 2015, 10:14

Message Mehanik »05 Dec 2015, 10:19

Video (click to play).

Message Igor Karpov »05 Dec 2015, 10:30

Message Mehanik »05 Dec 2015, 10:35

Message Mehanik »05 Dec 2015, 10:39

Message Igor Karpov »05 Dec 2015, 10:47

Message Igor Karpov »05 Dec 2015, 10:49

  • Like
  • I do not like

Image - DIY repair of fuel pump 4g94

VOVAN-YuAO 10 Feb 2010

Image - DIY repair of fuel pump 4g94