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Thread: Hard Start Hot

  1. #1

    Default Hard Start Hot

    I have the Pro-Jection 2D installed and it was running well, until the other day when I shut the car off at the store and could not get it restarted. It seemed to flood out. After checking things out I found a vacuum line disconnected. I rechecked TP voltage, supply voltage to relay with key-on and in crank, checked all grounds, rechecked fuel pressure (14 psi) at WOT. The injectors do not seem to shut off the fuel and it seems to make a hot engine restart hard. TP voltage at WOT is 4.8V, they are the old style injectors. Is it manually hold throttle wide open, engine will start after a bit of cranking. After a cold start, engine runs great until shut off it will just not restart. Anyone have any tips or ideas of what to check next? Thanks.

  2. #2
    Join Date
    Feb 2015
    Location
    Melbourne, Florida
    Posts
    176

    Default

    What system do you have? You can't give too much detail, but can't help without a full picture. Danny might actually be able to read minds, but I need info.
    Shawn Dickens
    Builder/Tuner at www.waterthunder.com
    Chevy LS Airboat Motor Specialists

    Technical Adviser for www.holleyinjection.com
    A site owned & managed by Cyber Space Automotive.
    Authorized Holley EFI Dealer

  3. #3

    Default

    Pro-Jection 2D, 2nd Gen I believe. It has the smooth control box.

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,085

    Default

    You may need to increase the fuel pressure.
    http://www.holley.com/data/Products/...99R9975rev.pdf (Early Pro-Jection 2D Manual - Fuel Pressure, Page 14)
    https://www.holley.com/document/199r9777-6rev2.pdf (Late Pro-Jection 2D Manual - Fuel Pressure, Page 27)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, 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, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 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 tires.

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