fuel trims... I'm beyond confused now

[SolidBoostTSi]

I've been doing some driveability tuning lately and I can get my Low FT to hover around 100 +/- 10 but while at high cruise my Mid FT seems to creep way rich, and pegs at 81.2.
Same goes for my High FT 81.2. Is there an ECT switch or sensor that I should be concerened about?? I havent even gotten to the point where I'm doing 3rd gear pulls yet and I'm already having issues. My coolant temp is @ 206f at peak 190+/- 5 @ cruise and my O2 enrichment is off the wall. lets say any where between 60 - 140!

I'm at stock fuel pressure right now with 780's so it shouldn't be too rich considering the 6152's flow amount. I was actually thinking I should be running a little to lean at HIgh cruise. I'm stumped HELP!


-Solid

 

[Rice Over Wheat]

Sounds just like my problems lately but on a 2G. And you even have a stage 3 keydiver which I don't. I suspect my front O2 is the problem and tomorrow I am swapping in a new one to see if that fixes my problems.

Update if you figure it out because we have the same problem I think. Let me guess, when you go WOT the trims behave normally?

Btw, I was still able to tune my open loop anyway. I suspect this is because it doesn't use the front O2 sensor.

 

[awdtalontsi1992]

Do you have a wideband to tune with? Without actually seeing what your A/F is accurate tuning is going to be near impossible. The wideband should give you the numbers you need for the good tune. It says you have the GEN 2 MAFT. That version can be hooked up to a wideband and can "selftune" itself once you give it target A/F to follow. With the MAFT Gen2 the SAFC is pretty much useless and extra variables to go wrong.

Those water temps you posted are nothing to be concerned about. The stock thermostat is 195degrees. Anything under 215 is nothing to be worried about. I wouldn't go much higher than that though.