So i got some wrx 440s tuned in with ECUflash and it idles fine, the fuel trims are pretty good but the only problem is that when i let off the throttle and press the clutch in while coming to a stop, say in slow moving traffic, my afrs will drop to about 20ish(which is off BTW) and then bounce back to 14ish and then back and forth a few times before coming bak to a steady idle of around 14.3-15 AFR... I have no partial throttle issues or WOT issues... I think it may be something to do with the injector latencies but i dont know which direction i should go with it(add to the latency values or subtract from them)?? hope someone can be of some help... thanks in advance!

 

nobody?

 

the ecu will employ fuel cut at no throttle above 1500 rpm. but if its doing this below that then you may have a latency issue. I think you increase the latency value to increase fuel since it will open sooner. someone correct me if im wrong.

 

Try and increase the latency at 12-14volts by just a bit and see if that helps. My guess is you will benefit from a little bit of extra fuel there.

Mitch

 

will try that out...Should i just increment it once or should i add a certain percentage??

 

Don't increment latencies ... bump up by .02 or so each time. Manually enter the value.