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Fuel... How did you reinstall your O2's? Unless tuned out, that is going to effect your trims pretty heavily. Running straight MHD flash, I had to reset alot of adaptations when I swapped my downpipe. There's more data than you realize that can be affected by the increase in exhaust flow. I think the JB4 tunes that O2 differential out though. If you can, reset the O2 sensors, O2 regulation, and (believe it or not) your throttle position sensor. After reset, give 'er hell for another 300 or so and she should even back out. In the meantime, decide when you will have time to install a Fuel-It Stage 1 or Stage 2... If you're anything like 80% of us on here, you're going to need it eventually.
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2012 E92 335i M-Sport w/M-Tech; 6MT, CDV upgrade, BMS Intake, BMS CP, N20 MAP (CP only), VRSF DP, Fuel-It Stage 1 LPFP, BMS oil cooler valve, fully adjustable M3 camber kit, MHD Flash, CF high kick spoiler, M4 black chrome grills, and much more to come... |