Hello, I have an Audi A3 1996 with the 1.8L non-turbo engine. I have a problem that the engine just dies sinstantly during driving. it is most of the times possible to start it again after a short while, but it can die again at any time.
The following fault codes are registered:
01249 - Fuel injector for cylinder 1(N30)
29-10 -Short to ground - intermittent
Similar fault codes exist for the other cylinders (I have a common error for all injectors).
The car is equipeed with Motronic M3.8 if I understand correctly.
I cannot find any electrical wiring diagram for the engine or Motronic 3.8! Haynes has nothing about any engine, and i have not been able to find schematics online. My understanding of short to ground is that the ECU does not get sufficent current through the injectrors when it grounds the injector, this could maybe be from high resistance on the supply, or high reistance down to ground after the ECU
1. Has someone had these fault codes before? how did you solve the problem?
2. does anyone have a circuit diagram for this engine, or maybe to a 1.8T that should be similar?
3. Where is the ground point to the ECU located?
4. I have googled that the fuel relay might have something to do with such codes, does anyone know anything more about that?
Best regards Eric