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Thread: Long Crank Time

  1. #1

    Default Long Crank Time

    Well IAC issue fixed thanks to Danny. My engine idles well, runs well. However, it never ever starts like one expects. It cranks about 3 full seconds and then fires up perfectly. Warm, cold no difference. It has been like this from the day I put it all together. It has never gotten worse or better. Turn key, engine cranks fast & smooth, and at about 3 seconds BOOM it fires & runs perfectly, every time no matter what. I expect when I turn the key, it should fire instantly like everything else I own, and back with a carb it fired up 100 times faster.

  2. #2
    Join Date
    Dec 2009
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    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.

  3. #3

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    If you have a cam sync, it takes that long to sync up & fire.

  4. #4

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    I do have a cam sync & crank sensor, and eight coil packs with eight injectors in sequential mode.

  5. #5
    Join Date
    Dec 2009
    Location
    Connecticut
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    22,932

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    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.

  6. #6

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    Quote Originally Posted by Danny Cabral View Post
    Good read. I use the EFI Live distributor. Holley crank 60-2 wheel. I can live with a three sec crank, and I see I have to live with it, LMAO. Thanks Danny!!!
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  7. #7
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    Quote Originally Posted by diehrd View Post
    I use the EFI Live distributor.
    "EFI Live distributor"? I think you meant an EFI Connection cam sync unit.

    I can live with a three second crank, and I see I have to live with it, LMAO. Thanks Danny!!!
    You're welcome, but that's not the point I was making in that thread.
    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.

  8. #8

    Default

    I'm not having an issue with the actual fire up. It fires instantly & runs perfect, AFTER it cranks for 3 seconds. So I'm confused as to what you mean.
    My distributor location holds a distributor housing with a cam sensor inside of it. EFI Connection is correct. LOL! My mistake.

  9. #9
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    Quote Originally Posted by diehrd View Post
    I'm not having an issue with the actual fire up. It fires instantly & runs perfect, AFTER it cranks for 3 seconds.
    That is a starting problem (unless your ECU actually takes that long to "Sync").

    So I'm confused as to what you mean.
    I meant, that thread is not implying that you "have to live with" a three second cranking time.

    My distributor location holds a distributor housing with a cam sensor inside of it. EFI Connection is correct. LOL! My mistake.
    Yes, that's not a distributor (it doesn't distribute spark). It's a cam sync unit.
    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.

  10. #10

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    Quote Originally Posted by Danny Cabral
    That is a starting problem (unless your ECU actually takes that long to "Sync").
    How can I know if the ECU is taking that long? It seems to me, it should see all sensors the instant the key is on and the crankshaft moves.

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