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Originally Posted by mad_sb
I will look at my logs in a bit for overlap and throttle angle but, a big component is the afterstart timing. The default after start timing is -15, when the high cold start idle drops the timing does back to the normal +13 - +15 degrees... this is easy enough to edit and does change the noise level but it also creates stability issues for the idle system and can throw numerous codes.
I'l still messing with it. at one time i had set the after start timing to 0 and it would throw an ignition timing out of range code or somethings like that but it was a lot quieter.. The idle rpm also went up. at the time i was not messing with the idle speed tables.
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I found these for the STI's, just a word of warning from one of the experienced techies:
Quote:
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Originally Posted by andya
A word of caution for those who would automatically zero these values:
I believe this table serves more than just catalyst warmup as observed with our project 07 STi with Mahle (low silicone) drop in pistons. After start, the engine is quiet below +5 degrees then the pistons begin the Hawaian fire dance beat which intensifies to +16 degrees until the engine reaches operating temps. Too much timing during warmup will cause scuffing, but E fuels may react differently.
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