Ok guys i know how to fix this issue.
I tried everything to fix this problem on my R32
What i did was:
- Changed TPS
- Cleaned ACC valve
- Changed AAC valve
- Cleaned AFM
- Changed AFM (tested with RED top and SILVER top engines)
- Changed fuel filter
- Changed oil
- Played around with the idle screw
- Cleaned out throttle body+butterfly
- Cleaned plugs and re-set em
- Checked for vacume leak
NONE of this worked at all!!!, i was spewing.
But finally i was looking around the engine bay and spotted the
COLD START SOLENOID.
I got a new Cold Start Solenoid from my mechanic and it was fixed!!!!!
Finally!!!!!.
It doesnt hunt for revs anymore, and it doesnt idle high.
It purrs like a kitten.
PS: I talked to my mechanic and he said that skylines engines are pretty prone to stuffing up the Cold Start Solenoid.
This would be ur problem too. Id start there ASAP cos you dont wana go shitten around trying stuff that dont work, like i did.
Hopes this helps you guys,
Matt