For educational purposes, what are the numbers and the colors? Sorry for the noooooob question but this aint my thing.



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AF target fuel adjustment table. ECU showing the approx amount of fuel to add or subtract to reach a target AF ratio.

 

yeah it's showing you the target afr's. don't go by it to the tee though. a lot of time when you see those larger values, it's actually adding on. for example say you're cruising and it's around 15.1. if you have the lambda overlay targeting stoich, then the target afr table should be telling you to add roughly 4% in that region. but there are instances where it will continue to add on and instead of 4% it may show 16% lol. sometimes you're better off looking at the logs and making the adjustments off those logs.

 

[QUOTE=b.r.i.a.n.,Jul 17 2010, 12:59 PM] yeah it's showing you the target afr's.

 

no problem. try to keep the transitions between rpms smooth. if you see a big gap try interpolating a few of those rpm break points to smoothen things out.

 

DO NOT try to tune your car from those tables, they only serve to get you in a safe ballpark if you're starting from scratch. Fine tune from the actual logs.

 

Never tune from datalogs like this. The results that you are getting are very typical, and are totally worthless. You need to create datalogs that are very controleld so that the suggested fuel changes are more like this.

 

Here's a thread about how you can do a good part throttle tune on the street.

https://www.s2ki.com/forums/index.php?showtopic=789868

 

^good stuff. Very good method at partial throttle tuning. It's alittle quicker with S300, if you carry a labtop with you, but we're talking S2k's not OBD1 honda's.