Quote:
Originally Posted by Tor
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I don't know why it's compensating for the ports or directs so much, could be any number of things. Most likely is sitting in one specific cell somewhere for too long that skews the learning. Or that the PI is scaling horribly at high loads around 2000 rpm.
It's clear from this and an earlier log with enough miles on it though the difference is about 6.4%-6.6%.
http://datazap.me/u/tor/wayno-stg-1-...zoom=4040-5265
Instead of worrying so much about it, here's another solution. I'd run this as is but you can add whatever timing you want to it. The AFR will be around 11.8 and LTFT around 0.4 up to 7000 rpm where your power drops off on stock header anyway. The lack of PI at 2000 rpm might take away the ECU's ability to learn those high LTFT values above 5k/7k, but if it doesn't this will let you run correct AFR, regardless of the LTFT issue is resolved or not.