Starting with your idle.. You look pretty good except for the bad left O2.. It's holding BLM ready off and your staying in open loop. Your desired RPM is 800 and you are idling fine at 800-825, MAP (vacuum) is good at 32-33 KPA. IAC is running near 45 so that's good, TPS voltage is .69 a tad high but within specs no need to mess with it. Close TPS timing is OK at 20*. AFGS at idle is 8.29 both injectors at 2.3 Ms looks good also.
Now the bad part for some reason your PCM is locked into using BLM cells 16,17 & 18. You never use 0-15. I have seen this caused by bad tunes messing with EGR or EVAP settings, and I believe I saw it once caused by altering BLM boundaries (Mysterybird are you out there ??) You are getting knock retard whenever you hit the throttle. The knock may be a lean condition caused by the combination of open loop and using incorrect BLM cells. Can't see BLM's in open loop both LT & ST read 128.. Your right O2 voltage seems to go full rich 900 Mv when you hit the throttle left stays stuck at 450 Mv . Not sure how the PCM software calculates fueling when using the VE tabels in open loop and when it's stuck in BLM cells 16-18. Sort of a double failure, that's not worth chasing, let's fix open loop first.
Work on that left O2 . And let's get this thing into closed loop before moving on. I'd like to see a posted copy of your tune if it's not a purchased one. If purchased then it's proprietary property of the tuner, don't post it. Trying to see why PCM is stuck in cells 16-18.
I'm Bob.. 1994 Z28, A4, Stall, CAI, Cam, RR's, 342 rear, LT's , CatBack, Tuned
Last edited by bobdec; 11-06-2012 at 02:29 PM.