Results 1 to 3 of 3

Thread: Fan operation with Terminator

  1. #1

    Default Fan operation with Terminator

    I have received my new unit but I am waiting on the fuel pump system. I would like to operate my cooling fan from the ECU. Is the lead for the fan a ground circuit or a 12V circuit? I can wire either way through my relay. Thanks, Robert

  2. #2
    Join Date
    Dec 2009


    Quote Originally Posted by OLD BOB View Post
    I would like to operate my cooling fan from the ECU. Is the lead for the fan a ground circuit or a 12V circuit?
    The Terminator ECU has two Electric Fan Outputs.
    The ECU provides a ground output to trigger an electric fan relay.
    Read sections 14 (page 19) & section 31.1 (page 28) of the owner's manual: (Terminator EFI Manual)
    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


    Thanks for the help. I guess I did not read close enough. Robert

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us