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Thread: Transbrake misfiring?

  1. #1

    Default Transbrake misfiring?

    Hey guys! I'm using Dominator EFI V5 with Staging Assist on my Powerglide equipped vehicle. I assigned all of my inputs & output for the Staging Assist portion and they seem to work flawlessly. However, whenever I power up the ECU or power it down, the transbrake solenoid will fire off no reason. I purchased and wired in Holley's ECU input protection device with the black wire to a good chassis ground, red wire to the load side of a Holley Nitrous SSR and the blue wire to the ECU. I configured this input as +12V input. I'm using a +12V signal on the trigger wire to the line side of SSR. My diagnosing has led me to believe the trigger wire/transbrake output on the ECU is what's causing the misfires. What could be causing this output to go high? And what can I do to prevent this? I'm doing my best to avoid damaging the ECU. I appreciate any help! Thanks, Nick.

  2. #2
    Join Date
    Dec 2009


    Quote Originally Posted by 1BAD81BU View Post
    However, whenever I power up the ECU or power it down, the transbrake solenoid will fire off no reason. (Related Forum Thread) (Related Forum 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.

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