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  1. cps432

    Holley Sniper EFI AFR A/F Unplugged Question ?

    I haven’t seen that happen on mine. I’ve had other issues with the AFR and O2 sensors. If the truck is still running the same then I doubt the O2 sensor is the issue. The truck won’t run without a proper signal from the O2 sensor. It might be an internal issue. Have you searched Holley’s site...
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