91 Octane

E20 fuel mix

slight missfire with huge suspicious timing correction in CYL #1 at 40% throttle then full throttle timing correction drops to normal...

Removed cold start noise reduction in hopes to solve weird removed cold start noise reduction and reflashed v5 tune . cold start stumbling issue, car started up without issue too stumbling rpm. I noticed weird owl like sound on startup, a few moments later in the startup sequence owl sound toned down and haven’t noticed on later attempts at startup when hot.

Felt a lot better than OTS stuff. Had some hesitation or stutter when starting in first from a stop. Still not hitting boost target so will start looking for leaks tomorrow unless you think it’s something else. Thanks!

Roots supercharger StageFP Nitrous Base Map ~16* timing Ngk 1 step colder (Evo8 plugs)

First Log: 2007 MK5 Rabbit 2.5L 5sp Shell 93; 68 F ambient IE SRT IE Stage 2 tune Cone filter