I have to mod the tune in this VZ HSV LS2 to be able to pass 5 gas test, nothing more nothing less. It is NOT my tune. The problem is at around 1500rpm the O2's stop oscillating and it goes very fat.
Car has brand new O2's (just front one's)
Supercharged
Stock internals
Long tubes / metal cats.
Have probably missed something very simple, but fresh eyes are always good!
Cheers, it's friday arvo i'm off
Can't open the file on this comp, but proportional fueling will make changes to oscillation. Can't remember if it is in that calibration or not.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
Just noticed Bank2 flatlines rich at around 1100 rpm (well before bank 1), so I think I may still be looking at a hardware problem.
Can't seem to find proportional fueling anywhere. Thanks anyway WS6.
Edit- have now unplugged both and and bank 1 Flat lines at ~ 420mv and Bank 2 has a mind of it's own so I guess im looking at wiring.
Last edited by super6ute; 12-11-2010 at 02:26 AM.
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