insane rb25 idle problem, diagnose if you dare

[nick-nismo]

wow how stupid would i feel if that's the cause of this issue.
well ill report back tomorrow when i try it, its a little late now for my car to be rumbling away.

[Skym]

Not stupid. Testing sensors, checking parts, etc helps to find faults that might have been there and you didn't notice them. It's what I did with my car and was worth the time spent on it (running smooth).

[nick-nismo]

no luck with that

[Supraclean]

Nick what are you running for injectors? Aftermarket?

Reason I ask is if aftermarket if adjustments arnt made at idle injector I beielve letancy could be off.

[nick-nismo]

i have deatchwearks 550's
but the car ran for a while with no issues after the tune.

[Supraclean]

I had the same issue,

one more quick question, your head is stock correct? Did you put on aftermarket cam gears or anything like that?

[nick-nismo]

Yeah stock head stock cams and everything. Just freddy intake mani and a holset.

[92GTSTproject]

lol was the freddy intake true and straight before you bolted it on? it might seal while cold for pressure tests but warp when it warms up also this means the iacv is no longer on the car?

[yanay]

So im having the same issue as well. swapped ecu and still getting horrible afr. No idea what it can be anymore..

[nick-nismo]

bought a new ecu, got the nistune board swapped over, still does it, so i swapped in my old ecu that is now stock and it idled normal.
so it must be the nistune board that is broken. fuckkkk me

[h4X6]

sounds like it... shouldnt be to much to get a new board, talk to tommy at rg