Quote:
Originally Posted by s2d4
@ jamesm looked into this when he did full close loop.
It's ridiculous how far off the previous forum golden childs had it so wrong.
A lot of the old dyno plots prior to 6-8 months ago had 13-14 AFR at WOT.... |
My full time closed loop setup uses a wideband imported into ecutek, not the stock sensor.
I've found that using ecutek's recommended expanded front o2 scaling, the thing isn't just off, it's inconsistent. Sometimes it'll read leaner than a proper wideband in the same car, sometimes richer, and never by a little bit. Suffice to say it's pretty useless for tuning anything. The most common case is the front o2 pegging rich while the wideband is reading something leaner, though it's not always that way.
I've always said if your tuner doesn't require a wideband for FI e-tunes they're doing it wrong. Nice to see someone else agrees..