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Thread: J1A A10 +12V Switched Input

  1. #1

    Default J1A A10 +12V Switched Input

    New member here. I've searched this and had no luck. My setup is a drag car running a mechanical fuel pump. I made my own harness with a Universal Unterminated Harness 558-105. I have the injectors on a switched relay, and also have the coils on their own switched relay. I removed the fuel pump/injector relay and fuse that was in the harness, since I'm not using it.

    Does the ECU still need the +12V switched input to A10? Thank you. Lee

  2. #2
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    Quote Originally Posted by 05moneypit View Post
    Does the ECU still need the +12V switched input to A10?
    That's what turns the ECU on & off. Also, ensure the Switched +12V red/white wire is powered in the "Run" and "Crank" key positions.
    http://documents.holley.com/techlibr...10555rev17.pdf (Holley EFI Wiring Manual - Section 6.0 "Loose Wires", Page 11)
    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, 200A 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/3000 RPM converter, 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 MT tires.

  3. #3

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    OK, thank you Danny.

  4. #4
    Join Date
    Dec 2009
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    You're welcome.
    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, 200A 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/3000 RPM converter, 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 MT tires.

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