engine wiring harness and ecu help

wilkie22 · September 5th, 2007, 01:55 AM

i have 87 mustang GT that was a 4cyl and when i bought it the guy put in a 86 5L motor. woundering what years i cant use a ecu and the engine wiring harness. does it have to be a 87 5L or can it be a 88, 89, 90, 91, 92, 93. im looking to buy a ECU and engine Wiring Harness as a pair so just seeing if i can us them from other years?

JBIGBOOTSY · September 5th, 2007, 11:57 AM

86-88 for the speed density. 89-93 for a mass air.

Iownastang · September 5th, 2007, 05:15 PM

i like the a9l computer and an 89 harness.

86ttops · September 5th, 2007, 05:26 PM

In 87 it was a option for mass air so i would watch for one of those too you really whant mass air I picked up a a9l and mass air wiring fro my 86 for $100 but they are like $500 through summit as far as a comp you need manual or automatic as well http://cgi.ebay.com/ebaymotors/88-93...spagenameZWDVW

Here is a wiring harness on ebay and i would check crags list as well

Iownastang · September 5th, 2007, 05:32 PM

Mass air was not an option in 87 !And the only way you could get it in 88 was with a california car,and you probably wont find one. The mass air harness i bought from summit was made by ford racing and was like 710.00

neverfastenough1 · September 5th, 2007, 05:39 PM

If it is a stick shift, I would agree with you can use a stick or auto computer, but if it is an auto, get an auto computer. The auto computer will keep the car from stalling when sitting at a red light in drive.

86ttops · September 5th, 2007, 06:08 PM

Maybe your right i thought it was a option? i will double check but you didnt have to hell at me

Iownastang · September 5th, 2007, 07:23 PM

Im not tryin to put anyone down,i was just talking.I tend to sound mean when i talking but im not tryin to be.

86ttops · September 5th, 2007, 07:24 PM

Its cool you where right someone had told me diffrent but i done some investagating

Iownastang · September 5th, 2007, 07:26 PM

Its ok!I make mistakes all the time.

September 5th, 2007, 01:55 AM	#1
wilkie22 Newbie Join Date: May 2007 Posts: 5 iTrader: 0 reviews	engine wiring harness and ecu help i have 87 mustang GT that was a 4cyl and when i bought it the guy put in a 86 5L motor. woundering what years i cant use a ecu and the engine wiring harness. does it have to be a 87 5L or can it be a 88, 89, 90, 91, 92, 93. im looking to buy a ECU and engine Wiring Harness as a pair so just seeing if i can us them from other years?

September 5th, 2007, 11:57 AM	#2
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	86-88 for the speed density. 89-93 for a mass air. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

September 5th, 2007, 05:39 PM	#6
neverfastenough1 Hardcore Enthusiast 2002 Mustang GT Join Date: May 2007 Location: Savannah, Ga Posts: 2,778 iTrader: 3 reviews	If it is a stick shift, I would agree with you can use a stick or auto computer, but if it is an auto, get an auto computer. The auto computer will keep the car from stalling when sitting at a red light in drive. __________________

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September 5th, 2007, 05:26 PM	#4
86ttops Hardcore Enthusiast 86,97 mustang gt t tops n/a Join Date: Aug 2007 Location: decatur il Posts: 1,274 iTrader: 0 reviews	In 87 it was a option for mass air so i would watch for one of those too you really whant mass air I picked up a a9l and mass air wiring fro my 86 for $100 but they are like $500 through summit as far as a comp you need manual or automatic as well http://cgi.ebay.com/ebaymotors/88-93...spagenameZWDVW Here is a wiring harness on ebay and i would check crags list as well

September 5th, 2007, 06:08 PM	#7
86ttops Hardcore Enthusiast 86,97 mustang gt t tops n/a Join Date: Aug 2007 Location: decatur il Posts: 1,274 iTrader: 0 reviews	Maybe your right i thought it was a option? i will double check but you didnt have to hell at me

September 5th, 2007, 07:24 PM	#9
86ttops Hardcore Enthusiast 86,97 mustang gt t tops n/a Join Date: Aug 2007 Location: decatur il Posts: 1,274 iTrader: 0 reviews	Its cool you where right someone had told me diffrent but i done some investagating

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