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Help 02 Sensors Reading 460mv after Maf calibration, wont go back into closed loop
Hey Everyone,
New to tuning here but have had my 2002 ws6 since new and always had it tuned elsewhere.
Just got the engine back together so before dyno tuning I wanted to make drivability better. It ran good after swapping from an SLP 85mm maf to a z06 screenless 85mm. I was able to put the right maf table in and it started right up and worked everytime. Did some logs with my 02 and saw it was lean pretty much everywhere else besideds WOT. Getting some slight knock down low form this so I know I had to calibrate the maf to my car.
I followed the guide and all was going well until I make the final changes to turn off LTFT and my narrow band 02 sensors stopped reading all together. They just were reading 460mv, stoich, dead in the middle barley moving. I though this was normal since I was forcing it to use the MAF only for all fueling.
After getting the MAf near perfectly dialed in, I reenabled everything and noticed in my logs that the O2 sensors were still not moving and i was not going back into closed loop.
I fiddled with it to see if I missed any settings but nothing. As a last resort I flashed my Known good tune I started the day with and.... same exact thing from the O2 sensors.
Could I have messed something up? I really cant this of anything. Its not my daily drive so i have some time to mess with it but... this is a strange one. especially since I went back to my old tune...
Any help would be great. Here are 3 tunes. First is the known good one, second is The final one i used for maf calibration, third is the calibrated with everything turned back on. Oh also there is a log file to show the 02 sensors not working on the known good tune.
Thanks so much!!!
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