General Low fuel Trim Question?

[kgtalon95]

Okay guys, I'm constantly having to readjust my AFC to get my low fuel trim to 100%. Is this normal?? Could it be affected by temperature, the weather here is crazy right now!!

Is there anything I can do, I have to make 2% changes to my low throttle map about everyday. Is there something wrong with my car??

Also, what normal timing at WOT? My logger is saying 38 degrees!!

 

[RavenX]

Fuel trims never stay at 100% because everyday is different and weather does affect the fuel trims. As long as your close to 95-100% just leave it like that since the ecu is the one making the adjustments. I don't know how much timing your supposed to see in a 1g maybe someone else can help you there. So just set the trim once and leave it

 

[sweet97]

Timing advance should be around 17* to 21* at WOT. Your knock count must be sky high. 38* is a cruise advance. Mark

 

[kgtalon95]

Ahh, okay then I must have been crusing becasue my logs at WOT show zero knock. I confused myself My trims are at around 105 so I guess i'll just let it stay a lil on lean side. Thanks guys!!