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Thread: AE vs MAP Rate of Change WOT Stumble

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    Default AE vs MAP Rate of Change WOT Stumble

    Hi all, need some help with tuning out a bog/stumble on a twin turbo V6 with a Holley Terminator EFI system. When driving at about 3000 RPM and stabbing the throttle, the engine will sometimes go lean and hesitate. Other times it'll take off like a rocket and the AFR will be spot on. Seems like the AE vs MAP will come on intermittently. If someone could take a look at my Global File & datalogs I'd really appreciate it. Engine is a Buick 3.8L V6 twin turbo EFR7163, 22 lbs of boost, 205 lb/hr injectors, 750 HP to the wheels, tuned on MS109 unleaded, fuel pressure 43 psi. Thanks!
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