I agree. The year of the drivetrain doesn't matter, 87-93 are the same. I also agree you can just run the engine and trans on the speed density setup. Even if there is a mass air meter in the intake tubing it doesn't really matter as it will do nothing with it speed density and it also will not restrict anything. I believe you have to hook up the vacuum line to the MAP sensor on a speed density car. Tha's about it.
Chris
Chris
Why not do what I did with my 87 Gt and get the Holley terminator that’s built for a fox body?? When you find a A9L or a9p ecm and fork over $300 for a 30 year old computer remember the capacitors are only good for 15-20 years and ecm should be rebuilt before placing it in the car. Just a thought to get some newer technology with a much cleaner wire harness for not much more money.
If in doubt about the capacitors or used computer, the turn around time for ECU Exchange is short, and the service was great. It was also cheaper than a remanufactured one from a chain parts store last time I looked. The pic is a screen shot of them on eBay.
You can make the v8 part of it work but you will be very limited on your modificAtions in the future. Speed density cars are not friendly on any upgrade that changes engine vacuum especially heads, cam, and intake manifolds there are certainty options for all but they are very limited horsepower gains and really not worth the hassle of changing. The reason I recommend an ecm out of an 89 or newer is so that you can convert your car to mass air and be able to do anything you want to it. Just food for thought my friend
The guy said that the wiring in it was from the 91 and there’s a spare harness that he said he thought was from an 87. The problem is, the 91 harness in there is a bit of a mess and a lot of wires ore clipped and it looks really rough. At this point I’m not sure what to do? Should I try and find a new harness? And what year should it be. The ECU in it is a A9l from the 91
Okay just one more question, since the wiring changed over the years, would a 89 harness match up to the 91 5.0 or would I have to make some changes? I’d rather run with an 89 because it has MAF and since the engine in it (91 5.0) is MAF I figure that would be the easiest route. My car is an 87 4 cyl swapped to 91 drivetrain.