Thread: Removing rear O2 sensor on 01-newer PCMs -- Things you should know

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  1. #1 Re: Removing rear O2 sensor on 01-newer PCMs -- Things you should know 
    GTX Level Member 02BlueGT's Avatar
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    Maybe this is why my LTFT's have been off for so long...... It will need to be set back to non-reporting though if you want to pass emissions
    2002 GT...CAI, Headers, Special Eddition two-tone leather interior added, HUD added, 12" Brake Upgrade, ZZP strut tower bars, gmpp sway bars, poly motor mounts, -6an braided SS fuel hoses , Hptuned, Headers, Top Swaped, 50lb inj, E85, 3.4
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  2. #2 Re: Removing rear O2 sensor on 01-newer PCMs -- Things you should know 
    SE Level Member Sinister Performance's Avatar
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    Got the updated software today and I tried it out on the '05 Monte. IT WORKS. The cat diagnostic does not run at all with the new settings (disabled via coolant temp qualifier and maximum number of tests allowed per drive cycle set to 0). The fuel trims work normally and AFRs are right where they are supposed to be (and nothing locks full rich ever like what it was doing). I was also able to disable all rear O2 codes so those would never set either.

    I am now working with my tuning software vendor to get these parameters added for all 01-up applications supported.
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