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Old 01-16-2013, 06:08 PM   #7
Scooby Guru
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
2002 WRX Sedan
Midnight Black


My stock tables are something like:
-100.00	-100.00	-100.00	-80.50	-61.10	-41.30	-21.60	-19.00	-11.00
(from coldest to warmer, I didn't include all the columns.)

I multiply that by 0.xx (something less than 1)

Like multiply by 0.55 results in:
-55.00	-55.00	-55.00	-44.27	-33.61	-22.71	-11.88	-10.45	-6.05
Which results in MORE fuel at cold temperatures between keying the ignition and warm-up of the O2 sensor and a switch to closed loop.

Since my ROM has -100 in the coldest columns, it's easy to see how much I've adjusted by, since the coldest columns are always equal to the % change I made to the entire table. Start with a pretty big change, like multiplying by 0.6 or something, then make changes in 3-4% up and down the next couple days and note which direction to head to get better.
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Last edited by Concillian; 01-16-2013 at 06:14 PM.
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