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435gc 435gc is offline
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Posts: 277
Join Date: May 2019
Car: 2015 435i xdrive gran coupe
Default 06-29-2021, 10:39 AM

IATs are way up there in the heat wave log. Definitely affecting your timing.

The post intercooler log is better. Not perfect but better. Still hotter than you want.

Timing is better but still an little jittery. Are you using the same e85 pump? Have you tested the ethanol content? The jitters look more octane related than IAT related in the post intercooler log.
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