[Christian628]

I put on gruppe-s UEL headers, overpipe, and replaced the gasket on my Invidia n2 a couple days ago. Fuel trims were slightly above -5 and I was going to collect the logs this week. Noticed today while idling at work that my LTFT was -13.2. When I got home I reflashed the off the shelf stage 2+ tune in thinking maybe it was something I have changed in the tune with the UEL headers causing it. It’s still wanting to climb up to high negative LTFT sitting at -9.8 after just a couple of minutes. I cleaned my MAF Sensor before doing the reflash. I don’t hear a leak and I’m using grim speed double thick gaskets. The O2 sensor that I can reach from opening the hood is nice and tight. Not sure where to go from here other than jacking up the car and trying to tighten the second O2. I’m running a mishimoto true cold air intake. Which I was told had basically stock maf scaling. Please someone help.


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