I have a 5.3 bored to 5.7 stage 2 tsp cam, 799 heads. The Bank 2 O2 is reading 3% richer only at idle. I changed the intake gaskets and I'm trying to determine if this is a weak 02 issue or something wrong with the heads. Maybe an exhaust leak? The intake is a TBSS. I've sprayed carb cleaner all over to test for vacuum leaks.
24-05-20 21-22-23.hpl
tune 146 after intake gaskets replacement VE correction.hpt
Daily driven
Chevy Tahoe 5.3 bored to 5.7 3.898, flat top pistons
TSP 212/212 112 LSA CAM, beehive springs, 799 heads
TBSS intake and throttle body
4l60e with shift kit and 2800 FTI stall, corvette servo
Honestly just forget about it and carry on, it's not even worth your time to worry about that.
I don't even care if I'm 5% off at an idle.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
This isn't a perfect world. I just looked at your log and I do not see anything wrong with that at all.Originally Posted by Nestorxg
Tuner at PCMofnc.com
Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs
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