mass air conversion

drtbiker · 03-26-2003, 11:02 PM

ok guys i think i have everything set is there anything else i need as far as the wiring. I got a stock wiring harness out of a mass air car is there anything else i have to worry about? Other than that i have mass air and injectors
thanks
raini

88PONY · 03-26-2003, 11:09 PM

You need the computer too....

Coolbreeze · 03-26-2003, 11:38 PM

What year is your car and what year harness???

drtbiker · 03-27-2003, 10:08 AM

my car is a 87 the harness is coming out of a 91 i believe and the a9l is also coming out of a 91

Coolbreeze · 03-28-2003, 02:32 PM

That harness won't work in an 87 unless it is modified. You will need a 89 or 87-88 converted to maf harness. On the 91 check the driver sode of the harness where it plugs into the dash harness, by the self test plug, for either blk & gry plugs or one red plug. If you look on your car you should have the 2(blk & gry) plugs. I think the 91's had the one red plug unlike the 87-90's. And even though the 90 harness's had the 2(blk & gry) they won't work either, without some modifing. Been there done that swap. We tried to use a 90 harness in an 87 4-8 swap and the fuel pump wouldn't come on, swapped in an 89 harness and it fired right up. The modification to the 90 harness, I have never done, and not quite sure exactly how. But for I gathered you will have to run a wire to the fuel pump relay so it can get power when the key is on. Instead of doing that I just swapped harnesses...

drtbiker · 03-28-2003, 08:38 PM

hmm uh oh i am going to have to take a look at the harness again

raini

88workcar · 03-28-2003, 10:20 PM

Quote:

Originally posted by drtbiker
hmm uh oh i am going to have to take a look at the harness again

raini

Yes look at it again. Plug it all together and lay it in front of the car. Open the hood. Look at it again, kinda see where every thing is going to fall into place first. Now crank the engine, drive forward slowly about ten feet. now back up to your original position. Turn the wheel so that you will wind up about a foot and a half from where you just stopped on the last foward lunge. Repeat this about twenty times, I will feel much better in the morning.

UglyFast88 · 03-31-2003, 11:29 AM

LOL!

I took 88workcar's advice, when I was thinking of MAF-ing my car. Now I'm still the proud owner of a Speed Density Mustang, and I can sleep at night...

drtbiker · 03-31-2003, 09:41 PM

OK guys i got a new ? this one is a pain but.......What do i need to do to make the 91 wiring harness work in my car??
thanks in advance

drtbiker · 03-31-2003, 09:52 PM

or should i just buy the other one for 60 dollars, i would pefer to use the one i have but i guess i can spend the 60

later
raini

Coolbreeze · 03-31-2003, 11:07 PM

If you can get the whole harness you need for $60,I would go that route. Hech the maf jumper harness from IST is $50. Most of the engine harness's go for atleast $100 in good shape. Call Mustang Parts Specialty in Winder GA and see what hey want

I say get the other harness for $60 and sell the one you have.....

03-26-2003, 11:02 PM	#1
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	mass air conversion ok guys i think i have everything set is there anything else i need as far as the wiring. I got a stock wiring harness out of a mass air car is there anything else i have to worry about? Other than that i have mass air and injectors thanks raini __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-26-2003, 11:09 PM	#2
88PONY Registered Member Join Date: Nov 2000 Location: INDIO CA USA Posts: 141	You need the computer too.... __________________ 88 Notch Natually aspirated 306 600 carb Edelbrock Victor Jr. Intake and Performer RPM heads 11.5 comp. ATI C-4 8" 4200 stall 4:10's 28x10.5 M/T MAC longtubes/prochamber Dynomax Race magnumss dumped, Caged and ready to go!!! 11.8@115 And remember friends don't let friend drive MOPARS!!!

03-26-2003, 11:38 PM	#3
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	What year is your car and what year harness??? __________________ Mike Blown~AOD'ed~331~ T-top~ 86GT Check out car on my page here ------ > ~~My 86GT T-top ~~

03-27-2003, 10:08 AM	#4
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	my car is a 87 the harness is coming out of a 91 i believe and the a9l is also coming out of a 91 __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-28-2003, 08:38 PM	#6
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	hmm uh oh i am going to have to take a look at the harness again raini __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-28-2003, 02:32 PM	#5
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	That harness won't work in an 87 unless it is modified. You will need a 89 or 87-88 converted to maf harness. On the 91 check the driver sode of the harness where it plugs into the dash harness, by the self test plug, for either blk & gry plugs or one red plug. If you look on your car you should have the 2(blk & gry) plugs. I think the 91's had the one red plug unlike the 87-90's. And even though the 90 harness's had the 2(blk & gry) they won't work either, without some modifing. Been there done that swap. We tried to use a 90 harness in an 87 4-8 swap and the fuel pump wouldn't come on, swapped in an 89 harness and it fired right up. The modification to the 90 harness, I have never done, and not quite sure exactly how. But for I gathered you will have to run a wire to the fuel pump relay so it can get power when the key is on. Instead of doing that I just swapped harnesses...

03-31-2003, 11:29 AM	#8
UglyFast88 Registered Member Join Date: Apr 2002 Location: Fordland Posts: 117	LOL! I took 88workcar's advice, when I was thinking of MAF-ing my car. Now I'm still the proud owner of a Speed Density Mustang, and I can sleep at night... __________________ '88 Speed Density LX 1998 Explorer motor 1.7 Roller Rockers GT-40 lower ported & polished Cobra upper intake MAC CAI Aluminum Pullies FRPP P-Shortys Cop car cam (to insult) Competition Engineering F/R adjustables Flowmasters New black carpet and... '84 Racin' Tempo seats! Cars' best run in 2002 with stock 150,000 mile 302 with pullies, exhaust and roller rockers only... 13.27 at 101.5 mph

03-31-2003, 09:41 PM	#9
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	OK guys i got a new ? this one is a pain but.......What do i need to do to make the 91 wiring harness work in my car?? thanks in advance __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-31-2003, 09:52 PM	#10
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	or should i just buy the other one for 60 dollars, i would pefer to use the one i have but i guess i can spend the 60 later raini __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-31-2003, 11:07 PM	#11
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	If you can get the whole harness you need for $60,I would go that route. Hech the maf jumper harness from IST is $50. Most of the engine harness's go for atleast $100 in good shape. Call Mustang Parts Specialty in Winder GA and see what hey want I say get the other harness for $60 and sell the one you have..... __________________ Mike Blown~AOD'ed~331~ T-top~ 86GT Check out car on my page here ------ > ~~My 86GT T-top ~~

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