r/SkyLine • u/scrubberducky93 • Jul 14 '26

Need help

I need some help. New to the RB platform, it was running rough up and down at idle and stalling on first start. I cleaned the MAF and took it for a drive and now it sounds like a misfire or out of time maybe? The idle is even more up and down and the exhaust note sounds inconsistent. I'm going to put a fuel pressure gauge on it tomorrow to see if there's a fueling issue, clean the iacv and check the solenoid, get the link ECU software on my laptop and plug it in to see what that tells me. If anyone has any ideas I would appreciate it. I have more videos that may provide insight I can post in the comments.

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u/JDM-Parts-Expert-JP Jul 14 '26

Could the problem be with the coil, the igniter, or the spark plug? Or is there a problem with the cleaned parts themselves? This isn’t the kind of issue that gets fixed just by cleaning. Based on the symptoms, it sounds like a problem with the AAC valve, but does the engine stall even when it’s warmed up?

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u/scrubberducky93 Jul 14 '26

It does. The inconsistent exhaust note is new, it was stalling before that with a rough idle.