nooo not another idle thread I hear you say :P
but i have read through about 30 idle related topics, and cant get myself an answer, so here goes.
The car has a rough idle on startup and erratic idle at times (when coming to a stop, putting clutch in, etc)
My suspicion's are with the ISCV.
Firstly should the air screw on the throttle body before the butterfly opening be fully closed? Because I can not get the car to run without it open, about one full turn, any less and it will stall instantly when i start the engine.
I thought this was the job of the ISCV, therefore making me think its closed all the time,
Ive tried cleaning the ISCV and its moving freely. so the only reason it would be closed all the time would be that its fubared.
So far Ive cleaned ISCV and TB
Checked all earths and added 6-7 new earths
Earthed speedo cable
Cheers in advance,
Darren