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Thread: Troubleshooting Help

  1. #1

    Default Troubleshooting Help

    I have a problem with my engine shutting down completely usually after it starts & runs for about 15-30 minutes. I have a custom sheet metal tuned port intake and I'm using mostly GM Ram Jet sensors & components. I'm using the Holley HP EFI computer. The engine will restart after it sits a while. It appears I'm losing ground at the injectors. I need some thoughts about what the problem maybe or the best way to diagnose it.

  2. #2


    No replies? Not enough information or too broad a subject? Wrong forum? I was just looking for some brainstorming ideas. Could it be the engine ground, the commuter, one of the sensors, the program itself? Other possibilities?

  3. #3
    Join Date
    Dec 2009


    Quote Originally Posted by hotcad331 View Post
    I have a problem with my engine shutting down completely usually after it starts & runs for about 15-30 minutes. The engine will restart after it sits a while.
    Seems like an ignition module failing when hot. Does the Data Monitor display legitimate cranking RPM when it doesn't start? (Scroll down to "Typical No-Start Checks".)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, R134a A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

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