Hi there, I need some advice regarding a 1997, 2.8L A4 which has become more stubborn that my wife.

Betsy died shortly after I replaced her power steering pump pulley. I started her after the procedurewithout incident. It was onlyafterI topped up the power steering fluid, that she refused to start again.

There is no spark at the plugs and no fuel being injected into the cylinders, although there is pressure at the fuel rail. I haveconfirmed the correct operation of the Ignition Amplifier (TCI), Hall Sensorand theresistance across the Coil Pack was measured to be 11.4 Kohm. I have carried out continuity testson the wiring from the crankposition sensorthrough to the coil pack without finding any fualt. I hooked up a laptop with diagnostic software, which gives me a response that the ECU cannot be accessed, and no further faults besides my wheel speed sensor(transducer) which is apparently intermittent.

Other sensors, like the temp sensor, being inoperative is inconsistent with the symptoms.

I have the suspicion that the ECU is not sensing ignition, but I cannot locate any such thing. My biggestproblem is that Irequire a workshop service/ repair manual for this vehicle. I have approached Audi,South Africa and they were unwilling to sell a copy to me, for some or other reason. On the18 April 2007 I booked the vehicle into Airport Audi.Their earliest available opening which is 2nd May 2007. This has however become an obsession, and I would like to get the car on the road before then.

I would appeciate any advice which I could use in addition tothe troubleshooting which I performed above, and/or any assistance with regards tolocatinga comprehensive manual and the costs involved.

Kind regards

VA

 

I get the impression that your problem is your ECU. do you have access to another ECU that is compatible with your car?

 

Thanks Chris, I was led to believe that the ECU is quite resilient. The Vehicle was well cared for. I will however try and obtail a loan unit to confirm. Is there any way I can test it?

 

ECU's pop up on ebay alot, the 2.8L ones are usually cheap.