Hey guys, just wondering if anyone could shed some light on an idling problem im having.
So the car in question is a 1994 R32 GTR V-SPEC II. From what I can see the car has a cat back HKS super dragger exhaust, APEXI pods, HKS EVC boost controller and turbo timer. When I got the car the AFMs were unplugged, an issue I would also would like to sort out (my guess is aftermarket ECU, but I was told it was stock when I bought it so I dont know).
So the issue is, soon after purchasing the car I straight away noticed a issue with idle first starting out as what seems to be just a slight misfire on idle ( the revs dont actually drop, the car just shakes alot but is stable around just below 1k rpm). Now when the car is like this and I turn it off and soon after turn it back on it hunts at around 500-200 rpm or just straight stalls. It usually just stalls but if I can keep it running itll soon stablize back to 1k rpm but still has the slight misfiring feel.
So I did some research and came to the conclusion that its most likely the AAC valve but I just want to confirm this before I start ripping things apart because it doesnt look like the easiest job.So any feed back would be greatly appreciated.
Thank you