Just wondering if its possible to calibrate or tune the narrowband o2's? when cruising and such when im in closed loop my wb is always reading rich and I know my wb is accurate. Its not running too rich when cruising it bounces around 13.9-14.6.
Thanks
2000 Sonoma Zq8 Extcab
'08 Ly6 6.0, Nx nitrous plate, TSP vvt-2 cam + more goodies, SW Longtube headers, 4l80e, CircleD 3500 stall, HPTuners, Narrowed 8.8 swap: Moser axles, 3.73 gears, disc brakes, posi. Caltracs. Afco Coilovers
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i have the same issue, both my widebands are reading ~14.3 average, and both front n/b are reading ~600 mv. eventhough i have a 14.68 commanded afr. if i use the scanner to command a 14.7 afr, everything seems to look like it should, i just can't figure out why its running rich all the time.
What are your trims like? Is stoich set to 14.7?
O2's are supposed to swing back and forth from rich to lean, and don't always average to 14.7. If trims are way off, the average WB afr will probably be off as well.
2000 Regal GS | Twin-Charged T72 | HPT Pro + PLX Wideband | 12.55 @ 110 on 15psi | Now running 20psi on E85!
1998 5.9L Durango | Powerdyne supercharger @6psi | Mesa Headers | Gibson Cat-back | 1.7 RR's | Tuned PCM | Ported Heads | Custom TB & Intake | Custom fuel rails | Rebuild coming soon...
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