boostadd1ct
10+ Year Contributor
- 142
- 1
- Aug 4, 2012
-
hayward,
California
Not sure if this is a newbie question or ecmlink section. But I feel like its something simple I missed.
Basically at idle I can get a good STFT hi/lo and combined fuel trim. Idles great.
However after a quick cruise or even just backing it in the afr becomes really rich like 11:1 or so. The rpm is also higher by a few hundred rpm.
Sometimes it would surge sometimes it wont. after a good 2 or 3 minutes of this it works itself out and back to normal.
I tried the auto maf calibration and it just made things worse.
Mods are in my profile. but basically gm maf/1600cc bosche/hy35/e85.
I did a 30psi boostleak and its solid. tb is rebuilt so no leaks.
new spark ngk brp8es and .28 if I remember right.
new wires/coil/alternator.
any thing else I need to check?
I added a log to show idle(which I thought was good FT) then a cruise that would peg my FT and mest up idle?
Basically at idle I can get a good STFT hi/lo and combined fuel trim. Idles great.
However after a quick cruise or even just backing it in the afr becomes really rich like 11:1 or so. The rpm is also higher by a few hundred rpm.
Sometimes it would surge sometimes it wont. after a good 2 or 3 minutes of this it works itself out and back to normal.
I tried the auto maf calibration and it just made things worse.
Mods are in my profile. but basically gm maf/1600cc bosche/hy35/e85.
I did a 30psi boostleak and its solid. tb is rebuilt so no leaks.
new spark ngk brp8es and .28 if I remember right.
new wires/coil/alternator.
any thing else I need to check?
I added a log to show idle(which I thought was good FT) then a cruise that would peg my FT and mest up idle?