Strange 02 readings
Strange 02 readings
I have a GM Denali 6.0 and just bought my Diablo (U7195) earlier this week. I installed the performance tune and took a little road trip to test it out. After driving for 45 minutes on the freeway, I noted my LTFT's were running at +12.5% pretty consistently at 80mph. I also noticed my O2 readings were jumping from ~70mv to ~800mv. I adjusted my LTFT's by -9 and went for a little test drive(probably 15 miles) and did notice my LTFTs looking closer to 0 at high speed and -9 at 45, but didn't drive as long as I need to to really get an accurate value. My O2's on both Bank1 s1, and Bank2 s1 are still jumping between 70mv and 800mv. Is this indicating something is wrong with my O2 sensors or is the tune causing it? I am afraid to tweak much if it could damage my engine. I wish I could log the data and send it over, but I like others didn't notice my version didn't come with that option. Thanks for any advice.
