The audi engine problems

Mark, do you have a second Key you can try, other wise it may be a trip to some tech. that can rest security.


A4 immobiliser problem Audifans net
Audi A4 2003 Starting up Then dying off problem AudiForums com
Uh HELP Electronic immobilizer needs resetting AudiWorld Forums
A4 immobiliser problem

Remove the air filter and squirt a bit starter fluid into the intake manifold , then immediately try to start the car if it starts , that is an indication there is no fuel going to the engine ,check the fuel system,if it does not start , you may have an ignition problem.

Sounds like the idle control valve. The same thing happened to my Mustang and that was my problem.

compression test
check for internal crack in turbo
replace plugs
check for blown head gasket

You need to have OBII scan performed. The fluctuating idle sinus like a MAF sensor, Temp & fan are separate issues. Get scan done, that should identify exact issues.

i would check the throttle butterfly for a carbon build up that may keep it from closing completely. have seen this cause stalling when returning to idle rpm. Best to try to remove and clean from both sides to get good results.this is just one of many possible problems. Hope it helps if so please let me know with a reply and good luck

I am not sure if you have the 90 or the 90 Quattro.
Click on the below Links.
The first Link is all the Diagrams on the Timing Belt for the 90 Model.
The second link is all the Diagrams on the Timing Belt for the V8 Quattro.
Before clicking, let me know if this helped you.
For the 90 Model:
http://www.2carpros.com/car_repair_information/year/1993/make/audi/model/90/1993_audi_90_timing_belt_diagram_marks.htm

For the V8 Quattro:
http://www.2carpros.com/car_repair_information/year/1993/make/audi/model/v8_quattro/1993_audi_v8_quattro_timing_belt_diagram_marks.htm

i have a 2001 Audi A6 quattro 95,000 miles when i change gear the car seems to over rev or keep reving when i put my foot on the clutch for a split second chould you tell me why is this

Your V8 Audi has two necessary sensors that malfunction due to their placement in extreme heat on the lower left side of the engine just inside of the header/down pipe connection. They read the flywheel position for the engines computer ECU. The reference sensor is always suspect, but the speed sensor may need to be changed, as well. The wire connectors to the sensors that sit above the FL suspension can be tested, or just replace both sensors to get some quality time with your V8.

Could be the fuel pump. If there is pressure in the fuel tank, such as on a hot day it is just enough to get the engine to sputter a few times but not keep running. Might also be the cam position sensor (left rear side of V-6 engine ). A scan reader tool would indicate that.