100problems
17-10-2015, 04:48 PM
Hi there,
I drive a 1994 Audi 100 C4 2.0E (ABK engine) and have been learning about it (fixing it) since I got it.
The most recent and current problem came while trying to fix a misfire. The misfire was intermittent and only seemed to be present while the engine was hot.
To solve this I changed a variety of things:
Leads
Plugs
Distrib Cap
Ignition Coil
Lambda Sensor
Cleaned out the injectors, fuel rail and plenum.
New fuel injector relay
New ECU Relay
New ECU
One of these last two solved the misfire (probably, it hasn't returned since those)
The new problem is that the engine loses power no matter where my foot is on the throttle at random times while driving along. The engine does not cut out but will not respond until I let it return to idle then give it some gas.It seems to happen most at night when the engine is coldest. Although i can persist for some time after the engine is up to temp. Very rarely happens in daytime.
It started after cleaning up the contacts on the old coil so I assumed the problem was routed there. But after fitting a new coil the issue persists.
If anyone has any ideas or has seen this problem before please let me know.
Thanks
I drive a 1994 Audi 100 C4 2.0E (ABK engine) and have been learning about it (fixing it) since I got it.
The most recent and current problem came while trying to fix a misfire. The misfire was intermittent and only seemed to be present while the engine was hot.
To solve this I changed a variety of things:
Leads
Plugs
Distrib Cap
Ignition Coil
Lambda Sensor
Cleaned out the injectors, fuel rail and plenum.
New fuel injector relay
New ECU Relay
New ECU
One of these last two solved the misfire (probably, it hasn't returned since those)
The new problem is that the engine loses power no matter where my foot is on the throttle at random times while driving along. The engine does not cut out but will not respond until I let it return to idle then give it some gas.It seems to happen most at night when the engine is coldest. Although i can persist for some time after the engine is up to temp. Very rarely happens in daytime.
It started after cleaning up the contacts on the old coil so I assumed the problem was routed there. But after fitting a new coil the issue persists.
If anyone has any ideas or has seen this problem before please let me know.
Thanks