ECM?

[blue5.0vert]

WIll the ecm for the 3.8 work w/ the 5.0, reprogramed, chip, or should i just go find a new one?

 

[jrichker]

Only if you want to use just 6 cylinders, and then your gas mileage will be poor...

Seriously, get the right computer for your 5.0 and quit trying to cheap it out. The computer has to match the number of cylinders and air metering scheme (mass air or speed density)

Copied from Steve89GT


There are a few different varieties of computers... just a few different calibrations.. Here's the #'s of most of the MAF computers that are around. A9L and A9P are the most common.

1988 MANUAL 8LD
1988 AUTO 8LF
1989 MANUAL A9L, A9S
1989 AUTO A9P, A9T
1990-92 MANUAL A9L
1990-92 AUTO A9P
1993 MANUAL A3M
1993 AUTO C3W
1993 COBRA X3Z

The harness itself is what is different.. Most of the computers are interchangeable, although I have never done it.
You can also use an auto computer in a manual... but not a manual comp in an auto..

Steve


A9L - 89-93 5.0L Mustang 5-spd
A3M - 93 5.0L Mustang 5-spd
A3M1 - 93 5.0L Mustang 5-spd
X3Z - 93 5.0L Cobra 5-spd
A9P - 89-93 5.0L Mustang Auto
A9S - 88-93 5.0L Mustang California
C3W - 89-93 5.0L Mustang Auto
DA1 - 87 5.0L Mustang 5-spd
J4J1 - 94-95 5.0L SVT Cobra 5-spd
T4M0 - 94-95 5.0L GT Vert 5-spd
U4P0 - 94-95 5.0L GT Auto
W4H0 - 94-95 5.0L GT
ZA0 - 95 Cobra R
D9S - Lincoln LSC
ZXA3
LLX3
CCA1
CCA0
AOL2

 

[Vinnietbird]

What year is your car?I have a Speed Density 5 speed computer taking up space.