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AUDI TURBO FUEL STARVATION



Hi Guys,

Thanks for your inputs and help over the last few days, I have been 
working like crazy to get things toghether so that I can get this car 
sorted out.

ACTIONS

ECU SYSTEM

ECU system will be pulled out tomorrow, and the EPROM fitted onto a IC socket.
The info will be sent to Scott M. asap. I have bought replacement 27C64 Eproms 
150nS which should do the job?I would love to try the 1.95 boost without bypassing the Pierburg 
valve to see what that does.

OCCASIONAL SMOKE

It seems that the turbo has been leaking oil through the seals,
accumulating it in the intake air lines and occasionally 
dumping it into the intake, causing the smoke.
We are planning to fit a replacement turbocharger  tomorrow.

FUEL STARVATION

This is the one thing that has really been worrying me. The car was 
running perfectly on the old fuel pump, boosting around 2 bar, and 
going like a rocket. It has been like this ever since the 
modification to the turbo/ valve system has been done. (Almost 2 
years).

The fuel pump started working intermittently, and cut fuel completely 
at times. In between the car was going well (Boost etc.)  When the original fuel pump stopped working, 
we found a lot of dirt and rubbish in the tank, which apparantly caused the pump failure. The fuel 
filter was full of mud, sand and water. The cause of this was a 
filling station attendants not taking enough care when, 
subsequently getting mud and water in their tanks. (Those things 
happen around here)

We replaced the fuel filter and fitted a brand new pump, and ever 
since then the car just did not go well under high torque. The agents have 
replaced the pump again and there is about a 20% improvement in the 
situation. I am going to strip and clean the whole fuel line, and 
redo and check all the switches in the system. We are also thinking 
of reconditioning the old pump.

THANKS FOR ALL THE HELP AND SUGGESTIONS SO FAR, AS THE ISSUES GET 
RESOLVED I WILL PUBLISH THE ANSWERS FOR ALL TO SEE.

Regards,

Renier Meyer.200T.