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Thread: Strange Fueling Question

  1. 07-31-2011 #1
    Rush
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    Strange Fueling Question

    I have my car MAF tuned at WOT from 20MPH up and also MAP or VE tuned the same, both which are pretty flat; however when I have both enabled, still in open-loop my AFR is about 8% lean until I get to about 3500-3600RPM. The only thing I can think of is under "Dynamic Airflow / High RPM Disable" is set to 3500RPM; why would this be the cause if both MAF and MAP are flat?
    Anyone have an idea why this is happening?
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  2. 09-16-2011 #2
    Littlegoose
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    Same problem here.
    My '06 SS Supercharged
    CAI | Front Mount Heat Exchanger | Dual-Pass IC Endplate w/ Opt. B | Ported & Polished LSJ TB | Ported & Polished S/C | 2.9" S/C Pulley | 60lb/hr Injectors | 4-2-1 Header | Catless Downpipe | 2.5" Cat-back | Custom HPtuned | JEGS Oil Catch Can | NGK 1-Step Colder Coppers | Prothane Tranny Bushings | TTR Solid Engine Mount | Progress Rear Sway Bar | AeroForce WB | Interceptor Scan-gauge | ARK Shorty Antennae
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  3. 09-16-2011 #3
    BackyardTurbo_FTW
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    That RPM enable is where it will change from VE to MAF. I would assume (without a log and tune this is all guessing ) that your lean range is an area you aren't tuning the right table for
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