So after getting a stupid vacuum leak caused by the FPR hose popping off (which I couldn’t find right away) and a split in the BOV vacuum line, I tripped a lean code. Of course. Cleared it out, everything seems to be fine.
BUT. The car now seems like the clutch is slipping…but its not. If the clutch was slipping, the rpm’s would most likely go UP. Well they drop. After talking to Morgan at Synapse and Taylor at Moon and a couple other performance shops, and readin both evo forums, AND talking to the guy who sold me the UICP, I NEED a tune. Its not a question anymore of “getting around to it.”
The ECU is seeing the boost spikes i’m getting from the increased flow. The gauge used to read 21…then trickle down to 18psi. Now I’m spiking to 23-26 and the computer no likey. So its closing my throttle plate (drive by wire bullshit) enough to kill the flow to the turbz so it cant “overboost” so to speak. WTF.
Big no-no not referencing boost pressure to the FPR. I know you didn’t do it on purpose and the computer probably covered for it, but I’d be checking compression to ensure nothing got hurt.