91 and 92 motor differences

[Rwrighttt]

Hey all, looked for the answer and couldn't find what I was looking for.... So I'm swapping my motor out of my 92 for a 91 due to the fact that I hydro locked it. Both motors are out right now. I took my time with the 92 unplugging everything, but with the 91 I pretty much cut every wire to rip it out quick. I can just strip the motor down and plug the wiring harness etc from the 92 into it right? At least I'm thinking I might need the MAF and computer to come over with the 91 right? Thanks for any input!

 

[natenkiki2004]

I'd bring the computer over from the 1992 anyway. Ford might have improved the learning tables or something. But yea, everything should work. My 1994 has factory parts from 1989-1994. You shouldn't have to swap any sensors. The 1993 year changed quite a few things but you should be fine.

 

[Maniak]

I believe the harness connectors (passenger side of the motor) are shaped differently & some 1991's use a MAP sensor (it's on the firewall)...


~Mark

 

[Rwrighttt]

I'd bring the computer over from the 1992 anyway. Ford might have improved the learning tables or something. But yea, everything should work. My 1994 has factory parts from 1989-1994. You shouldn't have to swap any sensors. The 1993 year changed quite a few things but you should be fine.

It'd be easy to do so I think I will

 

[Rwrighttt]

I believe the harness connectors (passenger side of the motor) are shaped differently & some 1991's use a MAP sensor (it's on the firewall)...


~Mark

Hmm I'll have to give them a look, if they are different I hope it's as easy as cut and re connect lol

 

[natenkiki2004]

I believe the harness connectors (passenger side of the motor) are shaped differently & some 1991's use a MAP sensor (it's on the firewall)...


~Mark

I just checked, this is true. My 1991 has a barometric sensor but my 1994 has none. I wonder why...