1. ‘90BlueFox

    What is this for

    What is the hole for above the fuel pump hole. What goes there
  2. ‘90BlueFox

    Will my fuel pump fit

    I’m buying a fuel tank kit for my 1990 foxbody and it comes with a 255lph fuel pump which is to big for my foxbodyand comes with a bracket can I buy a 190lph fuel pump and use the same bracket from the 255lph
  3. M

    Please Help, Experiencing Foxbody Issues

    I recently purchased a 1990 v8 5.0 GT mustang and the engine fluctuates from about 800rpm-2500rpm when in neutral, high idle. We replaced the o2 sensors, the EGR valve, cleaned the air filter, and replaced the air flow sensor. It now doesn't idle as high, fluctuating from around 750rpm-1500 rpm...
  4. Wayne Waldrep

    Electrical EEC-IV Capacitor Replacement Info

    Replacing the capacitors in your Fox Mustang EEC? Here is the quick and dirty info you need so that you don't have to look all over the place like I did. I watched every YouTube vid I could find on replacing these 3 caps. I also watched plenty of “how to replace capacitors” in general. I have...
  5. J_5.0_VERT

    Price Check on 1990 5.0 Convertible

    Been working on this 1990 Mustang GT Convertible since i got it in 2018, just looking to see what the general price of this car could go for nowadays being nearly completely restored and all. Any opinions on possible price i could sell for would be appreciated! Thank y'all, General Info: 1990...
  6. M

    Electrical 1989 mustang 5.0 runs rich and stumbles in closed loop

    So I recently converted my 1989 4 cyl to a 5.0 using all the correct engine harnesses from a 1989 car. The ECU I'm running is the A3M out of a 93 car. So the car starts right up no problem. After let's say 60 seconds of idling the car from what I think goes in to closed loop and once it does it...
  7. S

    New to The Form, with a wrecked Mustang!

    Hey fellow Mustang lovers, names Mark, I'm not new to the mustang scene how ever I'm new to this forum (obviously) I currently have a 1990 Mustang LX trunk car, powered by a 351W, (Originally a 4 cylinder car) that on November 6th of this year. Lady ran the red light (I'll leave it up to you to...
  8. 1990 Mustang LX 2.3

    1990 Mustang LX 2.3

    My 1990 Mustang LX.
  9. C

    Help With Bucking And Stalling 1990 Mustang Lx

    Hey everybody, reaching out because I just bought a 1990 mustang and it was running fine, now just a week or two later, it started bucking and the engine stalls after idling for a little bit. Pulled koeo codes : 51 54 66 96 Koer: 98 This is the first mustang I've owned and I have some...
  10. Noobz347

    Powerdyne BD-11 Install - M-6066-A50/A51/A52 Installation Instructions 2017-03-20

    Powerdyne BD-11 Install - M-6066-A50/A51/A52 Installation Instructions
  11. A

    Expired 1990 Ford Mustang Lx 5.0/5 Speed/145k/maryland/$7500 Obo/clean & Title In Hand.

    1990 ford mustang convertible VIN: 1FACP44E1LF155945 condition: excellent cylinders: 8 cylinders drive: rwd fuel: gas odometer: 100500 paint color: black title status: clean transmission: manual type: convertible Hello!! I don't even know where to begin with this classic but for sale is my...
  12. J

    Window Problem Need Help

    I have a 1990 mustang 5.0 and my passenger side window will not go up but it will go down I've already changed the motor so I know it can't be that , It goes down with the passenger and driver side panel havnt tried to switch the panel on opposite side can anyone help me out
  13. M

    Engine 1989 Mustang 5.0 Full Throttle Drops Rpm Hesitation And Popping Noises

    Hello, I have a 1989 Foxbody Mustang 5.0 and whenever I give the car full throttle the engine starts to die. It makes popping noises under the hood and if i keep my foot pushed down on the throttle all the way the rpm drops and it just makes popping noises. I replaced the fuel filter and have...