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Starts at about 2:30 C6GK71GuwWo

-90 Mustang 5.0 with 60k miles -Gear reduction starter -High amp alternator -RCI 15 gal cell -Full 1 5/8 cage -102" wheelbase -Stretched rear wheel tubs -Aluminum radiator with electric fans -RJM Injection wiring harness -Full width D44 and Big bearing 31 spline 9" -4.88 Gears spools...

Mustang MAF that came off of the same car that the computer and injectors did.

The harness was purchased from a guy who's name was hotcarls69cougar off of ebay. Since then I am totally unable to find any trace of him on there. I do have the A9L in there with a gray module. The motor is out of a bone stock 60k mile grand marquis that I drove home, revved the crap out of...

Engine runs great all the way up to about 3500.

Ok new reman distributor with new module are in. Same exact problem, nothing changed. I put an adjustable fuel pressure regulator on it and got the fuel pressure up to about 38 psi and through the throttle it doesn't ever drop pressure. I took the computer out and ran it in a friends car and it...

Definitely going go give the PIP sensor a shot since it's an easy change and its definitely not going to hurt anything. The computer is out of an 89 and I'm scanning it with a newer snap on solus pro scanner. I honestly don't know if it will show me the fuel trims or not.

I did have the idle screw turned up because when you first start it after resetting the computer it wants to start, run for about 5 secs then die unless you hold the throttle. I think it was idling at about 1,100. I've sprayed the crap out of it checking for any kind of leaks and haven't found...

I actually thought the same thing so I switched it out with another one. Didn't change at all.

Well I checked out the Baro sensor and everything seems good there. The problem wound up being I was sold a what was supposed to be a MAF mustang computer a while back and apparently it wasn't. I decided to try it the other day and never changed back to my A9L. So once I switched it back over...

If I wasn't running MAF then it would be a MAP and it would need a vac line but since I am it is a Baro. The girlfriends bone stock 5.0 stang doesn't have and vac going to it either.

nope no vac line

Well I went to a larger E2000 inline truck pump and it didn't change much, so I borrowed a Snap on scanner from a friend and it said that the Baro sensor was out of range. I noticed that it was black smoking worse the more it ran. So out of curiosity I unplugged the sensor and the black smoke...

Orange injectors. Well it's not totally ready to drive yet so I haven't been able to try that yet. BTW Timing is set at about 13 Degrees.

Well first off ill just say I have had a nightmare with this whole swap but I finally feel like I'm getting somewhere with it. It's a 90 Merc Marquis motor running on a Mustang A9L comp. At idle with the vac hooked up to the regulator the fuel pressure runs about 31psi with it unhooked it runs...

Shoot me price on a c4 shifter and the housing for it.

Thanks! I work at a parts store and I just ordered a new mustang sending unit so that shouldn't be a problem.

I'm getting everything together to start my EFI swap and didn't know if I ran a mustang sending unit in my fuel cell would i still have to run a low pressure pump and a accumulator?

I have one. I'm about 45 miles south of Mt. Vernon.