I'm chasing my tail on a couple of issues. All sparking from me doing research and confusing me further.
Basically I have been chasing the perfect wot a/f. It seems to flucuate. I was going to different dynos and getting different results. So I decided to buy a wideband.
With the same PE setting in the tune, the wot a/f seems to flucuate. I believe it's related to the LTFTs. On the wideband during the log attached during wot the a/f was 13.7-13.0. With the same tune I had an a/f of 13.0-12.4ish just a few nights before. The 8/22/09 log was with the same tune as the 8/26/09 logs.
1) My logs show that when I go wot my fuel trim cell is 15. How/where do I find that cell to modify it?
2) When i go wot the logs show that my LTFT is negative. Is that subtracting from my PE Enrichment table?
3) My commanded a/f ratio seems to stay at 14.7, even at wot. Why is that?
4) In the attached tune what should my commanded a/f be at wot?
5) How can I tell if PE Mode is enabled in the log?
6) At the beginning of the 8/22/09 log the 02 sensor voltages vary but ALOT. Cause for concern?