electrical

  1. A

    Resolved Electrical Help Please

    I'm so proud to be part of this group. It is extremely helpful when troubleshooting my foxbody. I am having charging issues with my car. A previous owner did the 3G alternator upgrade on the car. Shortly after I bough the car, I had to replace the alternator because the charging would drop...
  2. G

    2006 Mustang GT o2 Sensor Wiring Issue Car Bogging/Choking

    2006 Mustang GT Coupe Lets start at the very beginning Bought the car a couple months ago for a steal. Had no catalytic converters. Too loud and wanted to avoid future issues with smog, so I sourced an original catted h pipe with 34k miles on it (Car it came off of currently has 40k miles)...
    • GCantero93
    • Thread
    • 2006 mustang 2006 mustang gt electrical electrical issues o2 sensor oxygen senors oxygen sensor harness wiring wiring diagram
    • Replies: 4
    • Forum: 2005 - 2009 Specific Tech
  3. H

    New Built 91 Foxbody electrical failure. Need help

    Just acquired a 1991 foxbody Mustang, built 302 motor carbureted, battery in the trunk. Car died, battery in the trunk swelling and smoking, large white cloud of smoke came through cd player console as car died. What could be the issue. Car will not start and no power now. Fried harness? Don’t...
  4. J

    Electrical Cluster bulb LED swap gauges bounce

    Hello, I have recently upgraded the general bulbs in the cluster with some LEDs and now when I put my turn signals on they flash a little faster and the left side of my cluster needles will bounce including the tachometer until the blinker is turned off. I've read adding a resistor may fix this...
  5. J

    1978 Cobra // Replacement Engine Harness

    Anyone know where I can get a replacement engine harness for a '78 Cobra?
  6. J_5.0_VERT

    Drivetrain Fox Power Loss While In Gear

    1990 5.0L Manual T5 - Will try to keep this short. Car is effectively “dying while driving” in all gears. Happens randomly at any rpm and speed, feels like the motor is heavy engine breaking mid gear and on the accelerator. Saw the rpm jump up like a blip as it happened this morning. The first...
  7. R

    ID this connector on 1966 mustang

    Hi, Can anyone identify what this connector is for? It's on the under dash harness in the area of the heater box. Thanks! Rob
  8. ucnhtmenow1

    Engine No start issue AGAIN!

  9. F

    Electrical Pink/Black Wire Specifically

    Hello, all! I am new to these forums, and forums in general. I have recently purchased a 1990 Vert, it is my first Fox Body 'Stang. I am troubleshooting the electrical side of the fuel system. I got the car with a "bent rim" (lol no, it was the axle) and a few other "minor problems". After...
  10. J

    Help! 78 II has no power to any electrical except headlights and taillights and hazards.

    Background: Hello all, I just bought a 2.8L II in December and ran into some problems. First, i am on a military base so getting this fixed sooner rather than later would be ideal. I have already replaced the battery cables, starter solenoid, duraspark module, fuses, cap and rotor, and...
  11. E

    Dash lights and button lights went out

    I have a 2000 mustang gt, I was messing with the cables in my off market shifter and my dash lights went out, the only lights that work are the brake light, low gas and I think check engine light. but everything else ok the dash board is out so I can’t see how many mph/rpm I’m going, or anything...
  12. 9

    headlights under load

    84 351w any ideas why headlights would dim when i give it gas? altenator?
  13. Project_2v_

    P1237 fuel pump secondary circuit fault

    Hey guys I have a a 2002 mustang gt. it’s FBO WITH TRICKFLOW STAGE 2 CAMS. Dyno tuned. I’m running into some fuel problems I guess and with that code I also have a random misfire which is P0300. I’m hoping to see if the p1237 code is the reason why I’m misfiring. Already did spark plugs with...
  14. 93CalypsoConvert

    79' Electrical Issues

    Well one fox just wasn't enough. I recently picked up a 79 5.0 notch that has been sitting in a field for 21 years. I've got it running and yard driving, but I'm having some electrical issues. The first is ignition. I must hot wire the coil in order to keep it running. It gets +12 while...
  15. M

    TAILLIGHT ISSUE

    Hey yall, came across a problem with the taillights and fog lights. For some reason when looking at my taillights, my turn signals work, my brake lights work, but when I turn my headlights on, my taillights fail to turn on. Is there a reason why everything works up until I turn my headlights on...
  16. R

    Electrical Fox Body Fuel Pump Issues

    Hey everyone! new here, just recently bought a 1990 Fox Body lx hatch with a 5.0. The cars engine was blown up and then replaced with another 5.0 by a shop, but the shop couldn't get it running/customer couldn't afford more labor to fix it. they were suspect of the ecu so I popped it open, found...
  17. A

    Electrical '89 GT Fast Drain of Battery - Battery Won't Charge When Connected

    I have an 89 GT 5.0 vert that to this point has had very few problems. I recently drove the car, then parked it for 20 minutes and the battery was completely dead. I replaced the battery and found it ran great again until I parked it overnight and the battery was dead again the next morning...
  18. J

    2004 GT Dash Indicator Question..

    First off, I'd like to say I'm a new Mustang owner and I FINALLY HAVE MY DREAM CAR! But being a new stang owner, I am trying to learn everything 101 I can about my 2004 GT. One thing I can't find (or maybe I'm not looking around deep enough) is What dash indicators should I be seeing when my...
  19. A

    01 Gt no start

    Alright guys I’m beating my head on a wall. I just finished up converting my 01 GT from a auto (40r70w) to a manual (tr3650). Tried to start it up and nothing. Original though was that it was the neutral safety switch so I looped the wires (gonna install remote start down the road so I’d have to...
  20. Alldegree

    Resolved 86 door switch wiring?

    This is a branch from my main progress thread here. I decided to start a dedicated thread for this problem to try and reach some more people with it. I feel like I’m really close to getting this but I think I’m missing some key knowledge. I’m having a rough time getting a couple of switches...
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