So I've had my S50 swap running now for about 6 weeks, and in the last week or so I have developed an odd idle issue that pops up intermittently.
The first 3 weeks or so my VSS signal was not getting to the ECU and the idle issue was not present. Now the car will once or twice a day decide that it doesnt want to idle properly.
It will only do it when you clutch in and the car is moving - revs will go from about 400-900 constantly until you come to a stop and it settles down to a normal idle. On one occasion it didnt catch the drop and the car stalled. Ive checked for vac leaks and cant find any - most vac hoses were replaced when the engine was put in, ICV cleaned, PCV connector and O-ring is new.
Problem is that I cant get it to start doing it on demand, so it makes it hard to test. Car isnt throwing any codes apart from tank venting system (its not plugged in and canister vents to atmosphere and bottom of TB is plugged)
Anybody seen issues like this that are intermittent?
The first 3 weeks or so my VSS signal was not getting to the ECU and the idle issue was not present. Now the car will once or twice a day decide that it doesnt want to idle properly.
It will only do it when you clutch in and the car is moving - revs will go from about 400-900 constantly until you come to a stop and it settles down to a normal idle. On one occasion it didnt catch the drop and the car stalled. Ive checked for vac leaks and cant find any - most vac hoses were replaced when the engine was put in, ICV cleaned, PCV connector and O-ring is new.
Problem is that I cant get it to start doing it on demand, so it makes it hard to test. Car isnt throwing any codes apart from tank venting system (its not plugged in and canister vents to atmosphere and bottom of TB is plugged)
Anybody seen issues like this that are intermittent?
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