what is causing this lean cold start graph inside

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Oct 27, 2006 | 11:23 AM

kenkaru

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From: Mannheim, Germany

what is causing this lean cold start *graph inside*

Lots of coordinating trends but I don't know what's causing what.
I have quite a few other parameters logged so let me know if more info or a specific graph will help figure this out.

Thanks!!!!! The car is running pretty decent otherwise.

Oct 27, 2006 | 12:13 PM

TAQuickness

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From: Houston

http://www.forum.efilive.com/showthread.php?t=3170

Oct 27, 2006 | 12:13 PM

TAQuickness

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From: Houston

has to do with the fact we tune our cars for normal operating temperatures (180ish up) and do not account for the increased airflow during start up.

Oct 27, 2006 | 01:02 PM

kenkaru

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From: Mannheim, Germany

According to what I read on the efi live thread, it will be all set when I plug the MAF back in.

I laughed when I visited that link since the original post looked identical to mine.

Thanks! I can't believe I'm actually getting somewhere on my tune finally.
Thanks thanks thanks!
SDAutotuner's: don't forget to zero your fuel trims with bidirectional controls before logging. I wasted like two months because of this