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Thread: Engine stall.

  1. #1
    Join Date
    Jun 2021
    Midland Tx

    Default Engine stall.

    Holley team. I have the Holley Sniper EFI 550-516 on a Wieand Stealth intake, on a 351W stroked to 427. Running a Pertronix Flamethrower II ignition. Issue was driving at highway speed ~2500 RPM, I noticed RPM drop 100-300 RPM and would get back to normal RPM. This happed several times. Then later while driving the engine started to sputter & stalled. When to start back up the engine would turn over, but not start, but would attempt to start at WOT. Then immediately die when let off the throttle. Then later with help I temped to start and the TBI was just dumping fuel.

    To me it seems like a plugged fuel filter & or dirty injector. Any direction on how to troubleshoot & where to start?
    Last edited by Kmcallahan; 07-26-2021 at 10:09 AM.

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