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  1. 2011 - 2014 Mustang GT Tech
    Okay so I've done quite a bit of research and I know people USUALLY give up on this route, but I'm feeling determined. I'm debating on getting into self tuning with HP Tuners, and I'm curious if anyone HAS done this, and I'd love to have their experience and wisdom if so. I'm planning to keep my...
  2. Audio, Video, Navigation & Alarms
    I've got a 1988 mustang convertible. I just bought a wiring harness, put that all together, took the football amp out, but i cant find the right amp bypass for my car, nor do i really know how that works. I went to crutchfield but cant find much. Wondering if i could get some links to the...
  3. Classic Tech
    OK, I am looking at the wiring diagram and I am unclear on what I am trying to connect where. I have the wiring kit from CJPony for a 66 Mustang. I not clear on 2 things: 1. What does the switch connect to? 2. How does the wiring connect from the pump to the dash area. I have the wire...
  4. 5.0L Tech
    I'm looking at buying a 1983 roller coupe and have a motor from 87 MAF donor car I'd like to swap into it. My question is how difficult would it be to swap in the EFI motor and still have all instruments work in the car (cluster, air, console controls, etc..)? Would I need to pull the harness...
  5. 4.6L Tech
    Hello everyone! First off, I'd like to say hello to everyone in the forum! If we have any Bullitt owners in here, I probably met you way back in the day when I owned an 01' Bullitt after high school. Also owned a '93 Notchback Fox and a '96 F150 so I'm no stranger to Fords. Recently I got the...
  6. 4.6L Tech
    Hello all, I just recently purchased a 1999 Mustang GT. The previous owner bought it and wasn’t running. Found out that the obd2 port was cut off and melted. He replaced it and now the mustang only runs with the scanner plugged in. However the dash periodically works and none of the lights work...
  7. 2011 - 2014 Mustang GT Tech
    So i am retrofitting the s550 style lights for my 2011. Originally they had a plug that replaced where the turn signal bulb plugged into. I'm wondering A) if it matters how i plug it in (don't think it matters) and B) which wires would be the parking lights and which is the turn signal leads...
  8. 2005-2010 V6 Mustang Tech
    My serpentine belt was squeaking so I went to my local parts store, they sold me a 4 rib belt instead of a 5 and I didn't notice.. I didn't even get 10 miles on the new belt before I realize my rpms and dipping HARD at idle and my a/c is going from cold to hot over and over, my fans usually come...
  9. News
    We previously discussed how the implementation of bio-plastics in the automotive industry contributed to new claims that rodents have developed a penchant for wiring insulation . While rats gnawing on wires of cars isn’t a novel problem, some believe that the new materials used have exacerbated...
  10. Classic Tech
    Disclaimer: 23 year old who doesn't really know much at all about cars, but is getting there. 1970 mustang, automatic, 351W So I'll begin from the start, which always helps, and try to keep things concise: Gauges worked fine prior to new wire harness Replaced old harness with new one, wired...
  11. 5.0L Tech
    I am working on a newly acquired '64 Comet, with a 5.0 HO and AOD swapped in it. The car generally runs pretty well, but will pop (out the intake I believe) on occasion when applying very light throttle, and occasionally idle roughly. If it is idling roughly, it will likely pop with light...
  12. 2015+ 5.0 Tech
    Hey everyone, new user here. First post. I have a 2017 GT and I'm trying to wire up some underglow lights for courtesy lighting. I already know how to wire them. I'm just going to wire them the way cjponyparts instructs you to wire the footwell lighting. That will make them only turn on when...
  13. Classic Tech
    I have a 68 Mustang that I've added a horn relay to. It did not originally have one, like most vintage mustangs. Since I modified my steering wheel I had to create my own horn button and because of that, wanted to ensure I did not fry it running full voltage through it. So, I decided to add a...
  14. 2005-2010 V6 Mustang Tech
    The engine light came up on my 05 mustang for all 4 02 sensor heater circuit (open circuit or grounding issue), egr (open circuit or grounding issue) AC clutch relay (open circuit or grounding issue) and evap system (open circuit or grounding issue) Already changed 02 sensors, engine...
  15. Classic Tech
    So I have a 1966 Mustang that's finally getting close to being running. Mainly I need to finish the hydraulic clutch and brake system and then the entire car wiring harness. It's got an EFI 5.0 out of a 1988 Mustang with a T-5. I'm using a 1991 Mass air harness with an A9L computer. Im then...
  16. 2005-2010 Mustang GT Tech
    Hi guys, so I recently installed a RGB angel eye kit on my headlights and i have it all hooked up and it works but im having trouble getting the RF remote to work. the angel eyes are on a constant cycle of flashing and changing colors and i cant get the RF remote that was provided to turn it off...
  17. 2005-2010 Mustang GT Tech
    I have an 06 mustang gt automatic. i am installing an oil pressure, oil temperature and water gauge in a dash pod. I have read of several different ways to wire them and wanted to post what I am planning on doing and have a couple of questions. I plan to add an add a circuit to one of the open...
  18. Classic Tech
    Calling all gurus. I have just finished up putting a 302 in my coupe and I'm having an issue starting it. The current situation is that when I turn the key to start all it will do is turn over and over and backfire through the carb. I already fixed an earlier ground issue, I am positive that...
  19. 2005-2010 Mustang GT Tech
    Ok guys I need some electrical help/advice/confirmation before I end up burning the place down with crappy wiring I have halo lights installed and the way I have them now, they turn on with the parking lights. I want to be able to turn the headlight halos on and off separately from the foglight...
  20. Classic Tech
    Hello everyone, I am coming close to finishing the whole I6 and V8 swap. This weekend I finished the wiring of the engine and its components and attempted to fire up the engine. When I attempted to do so, the ground from the engine blew and the solenoid did as well. After replacing the...
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