Im in the process of gathering parts for my EFI swap (still) and had a question about the harness. Ive asked a few friends locally, and rather surprisingly none seem to have or know of any 89-93 Mustang harnesses. Ive looked in my local yards and the pickings are slim. Plenty of Crown vics, but those are SD and have the 289 firing order, so no good. I see Mark 7s from time to time, and they have the H.O., but speed density. I could just convert it, but Im not entirely sure what that entails. Im sure its not that hard, just havent done it. I was looking at the ford fuel injection website, and it shows the 91-93 t-bird, 94-5 truck, and 94-5 mustang all being the same MAF harness. Are these good candidates? I seem to remember reading that the 94-5 mustang computer doesnt work well with mods, and Im sure the harness wont simply plug into an earlier computer (correct me if Im wrong). Id rather not just buy one off ebay because I would never know it was the wrong harness until I went to put it on the car and it didnt work, or worse yet didnt work right and left me chasing my tail. Also I would like to pull one from a vehicle personally so that I know where everything goes and I can spend all day labeling, taking pictures, inspecting, etc. My other option is much more expensive, but has its merits as well. Flipping through a mustangs plus catalog they have an efi harness from Painless for ~$570. This would be nice because then I wouldnt have to worry that a previous owner let the smoke out of the harness (everyone knows its the smoke that makes the wires work), its the right one, no crispy insulation, and every terminal is labeled, and comes with instructions.
Its going into the car in my sig, which I have no plans to ever sell, will soon have a wide ratio AOD, and currently has what amounts to a rebuilt 96 Explorer motor with mildly ported heads and shorty headers. Once everything gets sorted out and I get financially situated itll get a stroker, but not for at least a couple years.
Its going into the car in my sig, which I have no plans to ever sell, will soon have a wide ratio AOD, and currently has what amounts to a rebuilt 96 Explorer motor with mildly ported heads and shorty headers. Once everything gets sorted out and I get financially situated itll get a stroker, but not for at least a couple years.