While turning on the engine starts then suddenly stops. Audi A2 1.4 petrol AUA

Albik

New Member
I was calmly driving near a cemetery (!) when the engine started to lose power and then turned off. Luckily I managed to park the car but i couldn't restart it.
The roadside assistance said that it could have been caused by a dirty fuel filter or a problem with the fuel pump.

-Vagcom signaled these errors:
-Egr Basic Settings not Performed
-Cylinder 2 Misfire Detected
-Oxygen (Lambda) Sensor B1 S1 Response too Slow
-Powertrain Data Bus: Missing Message from ABS Controller
-Potenziometer for EGR Error in basic setting
-Potentiometer for EGR Signal too low.
ABS and EGR errors have been present for a long time.

These have been the troubleshoots that i done:
Changed the fuel pump
Changed the fuel filter
Changed the fuel pressure valve
Changed the ignition coils
Cleaned the throttle body
Cleaned the injectors
Verified and cleaned Maf ( with Vagcom)
Verified and clean the spark plugs
Verified the Cam shaft sensor

After all of this the engine tries to start (with an attempt at running) but then stops. While testing with the Injectors i noticed that, while starting, they do only 2 splashes of fuel and then nothing more.
 
Hi have you got a spare key? possible id48 transponder fault this is housed within the key itself would cause very similar fault as you described
True, but surely this would be evident by the continued appearance of the car immobiliser symbol in the dash dial after startup, might even flash(?).

Andy
 
I was calmly driving near a cemetery (!) when the engine started to lose power and then turned off. Luckily I managed to park the car but i couldn't restart it.
The roadside assistance said that it could have been caused by a dirty fuel filter or a problem with the fuel pump.

-Vagcom signaled these errors:
-Egr Basic Settings not Performed
-Cylinder 2 Misfire Detected
-Oxygen (Lambda) Sensor B1 S1 Response too Slow
-Powertrain Data Bus: Missing Message from ABS Controller
-Potenziometer for EGR Error in basic setting
-Potentiometer for EGR Signal too low.
ABS and EGR errors have been present for a long time.

These have been the troubleshoots that i done:
Changed the fuel pump
Changed the fuel filter
Changed the fuel pressure valve
Changed the ignition coils
Cleaned the throttle body
Cleaned the injectors
Verified and cleaned Maf ( with Vagcom)
Verified and clean the spark plugs
Verified the Cam shaft sensor

After all of this the engine tries to start (with an attempt at running) but then stops. While testing with the Injectors i noticed that, while starting, they do only 2 splashes of fuel and then nothing more.
Have you tried clearing the errors in the scan log? They, or some anyway, could be historical, and so confusing.
Mac.
 
Check coil packs they can buldge out and also check fuses!

Won't be immo as once cars started it no longer trys to read chip until next restart
 
This is the log of the last start attempt. I think the manifold pressure value is too high. Any idea?
Non so che pesci prendere! (I don't know what fish to take!)
 

Attachments

  • LOG-01-003-101-076.png
    LOG-01-003-101-076.png
    96.5 KB · Views: 98
Back
Top