Ok brains trust, this one has me stumped. I've looked at everything and this thing still idles like this. Throttle body calibrated, no vacuum leaks (in fact its wandering around 200-350 KPa, should sit around 400 so not a leak), o2 readings look ok.
The engine did come from an automatic car and is now in a manual - could it have different inlet cam timing that the manual ECU is not dealing with causing more vacuum...?
Idling
Exhaust sound on idle
The engine did come from an automatic car and is now in a manual - could it have different inlet cam timing that the manual ECU is not dealing with causing more vacuum...?
Idling
Exhaust sound on idle
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