• Tags

tfi

  1. Popps then Shuts Off again.

    My mechanic just got the Ign Module replaced and the car pulled the same crap again. Going down the road, heard/felt a pop, lost power and engine light. Would crank but no start. After sitting for 10min, fired back up but feels like it's got a miss/fluctuating idle. Any ideas? 90 mustang...
    • robw13
    • Thread
    • Jul 4, 2025
    • distributor module pip tfi
    • Replies: 67
    • Forum: 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  2. D

    Engine 89 Fox new coil and TFI started and died now won’t restart

    Hi guys, I’m new to foxbodys and this platform. I have an 89 LX 5.0 5-speed. Not much history on the car but what I do know is: Cam and lifters done(no specifics) BbK headers and cutback exhaust Upgraded alternator Problem is I was driving car would cut out half a second 2-3 times on my 30...
    • D_rail89
    • Thread
    • Jul 11, 2023
    • foxbody no start pip tfi
    • Replies: 9
    • Forum: Fox 5.0 Mustang Tech
  3. B

    Ignition Issues, Code 18

    hey guys, since I have been doing a lot of searches on my issues and a lot of answers are coming from this site. I have an 86' LX 5.0L. About a year ago I ran into an issue where my car was intermittently cutting out like a misfire and the auto meter tach was bouncing everywhere. Just with...
    • blackarma
    • Thread
    • Jun 1, 2017
    • bouncing tach code 18 tfi tfi module
    • Replies: 11
    • Forum: Fox 5.0 Mustang Tech
  4. 1985 Mustang Gt Idling Problem

    First Thread on here whats up everyone. Recently aquired a 1985 Mustang GT 5.0 5speed and so far it has been a great car. A few days ago I was driving normal and I came up to a stop light and the car died and would not fire for about 5 or 10 minutes. I have done a little research and figured out...
    • Josh4x4td
    • Thread
    • Aug 7, 2016
    • foxbody idling problem ignition module tfi
    • Replies: 3
    • Forum: Fox 5.0 Mustang Tech
  5. D

    Electrical Tfi Electrical Testing Question

    Howdy, A quick question on an electrical test chart cited in jrichker's tech notes, "How the TFI ignition works in 86-93 model Mustangs." JPEG of test chart attached. Regarding test 3, "Power to TFI module, engine crank" I am getting around 10.6 volts, but the expected result is 8 - 10...
    • DuderMcMerican
    • Thread
    • Jul 5, 2016
    • electrical testing tfi
    • Replies: 2
    • Forum: Fox 5.0 Mustang Tech
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