Hi! My freshly rebuilt ADU engine is not idling good and when hot, 90c it stalls if I don't open the throttle.
Cleaned the idle valve and also tested an other idle valve. No change. So after some reading I suspect the Lambda.
When I start it cold, 20c. The idle is fine for about 30-50sec, then it's starting to be very nervous.. jumping from 400-800rpm. Could the Lambda cause this? Every hose is checked and exchanged if it was bad.
If the idle valve was faulty it shouldn't be ok for the first 30-50sec I think?. It's always the same time until he idle goes crazy.
TPS is checked and functioning.
Spark plugs and ignition is new.
ECU gives me no fault codes at all. Any one had a similar problem?
Cleaned the idle valve and also tested an other idle valve. No change. So after some reading I suspect the Lambda.
When I start it cold, 20c. The idle is fine for about 30-50sec, then it's starting to be very nervous.. jumping from 400-800rpm. Could the Lambda cause this? Every hose is checked and exchanged if it was bad.
If the idle valve was faulty it shouldn't be ok for the first 30-50sec I think?. It's always the same time until he idle goes crazy.
TPS is checked and functioning.
Spark plugs and ignition is new.
ECU gives me no fault codes at all. Any one had a similar problem?
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