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It’s just weird because I installed the catless downpipe myself 2 weeks ago. Made sure all connections and sensors were right. Had no issue. And then few days ago I installed the intake and had an issue right after doing so. So I would think the intake is the issue.

I don’t have LTFT maybe because I just reflashed the car. But the STFT was 4.31. Not able to upload the log here I guess because I’m on my phone. Will try later when I get off work

Thank you brother I will try this. It kinda makes sense to me that the code would be from that though. Boost leak = more air in the system? Thus making it more lean? Idk we’ll see I hope it fixes it. Gonna reinstall it tomorrow afternoon I’ll update everyone

Yes I did use that metal coupling and it seems a little loose! I did use the OEM orange gasket too. That person in the thread said he stopped using the metal coupling and instead put the silicone inlet directly on. Do you think I should do that? And just get rid of the metal one?

would it be lambda 1 AFR? I did a mini log and it says 14.7. And my boost was 9.2 max. Won’t go above that.

How do I check fuel trims. Yes I did aftermarket cat option in the MHD tune

So I took it apart and tightened that little port. Put everything back nice and snug and I still have a boost leak somewhere. I can’t figure it out. Is the inlet connection supposed to be able to wiggle around? The metal pipe that attaches with the little spring thing

Oh damn I didn’t realize that small little clamp goes there! Thank you very much. I’ll try it out

Damn that sucks. I have no idea what it can be. I’m gonna take apart the intake and put it back together. I’m pretty positive the downpipe and sensors are good. I installed it 2 weeks ago and didn’t get any cel till just now like 50 miles after installing intake

2 weeks ago I installed a catless downpipe and flashed MHD Stage 2. No issues. Few days ago I installed an MST intake and turbo inlet. Last night I was driving and got a CEL with code 118602 - Mixture control: Mixture gas after catalytic converter too lean. Would this have something to do with...