I have a 1990 audi 100 that starts and idles fine while sitting. Once I take it out and drive it and it warms up and get it to 3500 rpm's it then backloads and runs poor. It will only go about 15 - 20 mph. It continually fouls out the spark plugs. Have replaced the timing belt and reset cam timing, put on new coil, new Bosch plugs - wires - cap - rotor, new Bosch O2 sensor, cleaned throttle body, checked temperature sensing injector, checked fuel pressure hydraulic actuator, adjusted and set the CO on the car, new fuel pump, and checked many of the various switches around and on the engine. Today they are going to put an exact match ECU brain on the car to see how it responds. If it still runs poor at that point they are wondering where to turn next. Any ideas?
- posted
15 years ago