conversion question!!!

89_coupe · 11-18-2006, 09:15 PM

i have just purchased a 1990 fastback, and it was converted to a 5 litre, it has no wire harness, but i have one from a crown vic...what else am i gonna need to make this thing road worthy.
i got a smokin deal too...it has 45000 on it, and has been storedd since 1992...engine has 10000, and i got it for $550.00
anyone can help me, just send me a message, or email me
frank_macisaac@hotmail.com

bigwhitecobra · 11-25-2006, 10:21 AM

What are you trying to do? Convert to a 4.6? 5.0? Or???

Basically, you will have to swap out the engine harness, all wiring harnesses, and computer. It's much easier, an very straight forward.

89_coupe · 11-25-2006, 10:00 PM

ok...yeah...what im doin is a 5.0 swap, i bought the car, all the work is done, but no wire harness or computer...was just wondering if the gear from a crown vic would work!!!

bigwhitecobra · 12-04-2006, 07:39 PM

You may have to rewire somethings, but yeah basically. Just plug and play.

Kick_Ass2k1 · 12-05-2006, 12:30 AM

The harness will work, but the computer may or may not. Some of the 5.0 vics were non-HO. The mustang is HO. The way to tell if your engine is an HO engine is by the firing order (HO being 1-3-7-2-6-5-4-8, non-HO being 1-5-4-2-6-3-7-8). You need a computer to match weather it is HO or non-HO. Also, if you are going to be running a mass-air sensor, the engine has to be HO with either a A9L or A9P computer. Check out www.fordfuelinjection.com for more info.

Mustang Billy · 12-07-2006, 06:55 PM

Quote:

Originally Posted by Kick_Ass2k1

The harness will work, but the computer may or may not. Some of the 5.0 vics were non-HO. The mustang is HO. The way to tell if your engine is an HO engine is by the firing order (HO being 1-3-7-2-6-5-4-8, non-HO being 1-5-4-2-6-3-7-8). You need a computer to match weather it is HO or non-HO. Also, if you are going to be running a mass-air sensor, the engine has to be HO with either a A9L or A9P computer. Check out www.fordfuelinjection.com for more info.

100% Right......

Best too buy a Harness out of another 90 model 5.0 too match the existing Brown or Brown and Grey pugs coming through the firewall on the drivers side bye the brake booster...I am no expert bye no means but have converted 3 myself in the past years...JMO

tireburner163 · 12-11-2006, 12:21 AM

You will need a harness from another from a 90-92 Ford mustang. Those years are the only ones that will correctly match up to your chassis harness.

11-18-2006, 09:15 PM	#1
89_coupe Registered Member Join Date: Oct 2006 Location: cape breton Posts: 13	conversion question!!! i have just purchased a 1990 fastback, and it was converted to a 5 litre, it has no wire harness, but i have one from a crown vic...what else am i gonna need to make this thing road worthy. i got a smokin deal too...it has 45000 on it, and has been storedd since 1992...engine has 10000, and i got it for $550.00 anyone can help me, just send me a message, or email me frank_macisaac@hotmail.com __________________ The Roadhammer

11-25-2006, 10:21 AM	#2
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Re: conversion question!!! What are you trying to do? Convert to a 4.6? 5.0? Or??? Basically, you will have to swap out the engine harness, all wiring harnesses, and computer. It's much easier, an very straight forward. __________________ 2003 GT White---STOLEN May you burn in hell whoever took it. Dumbazz didn't even get the good engine that was in the garage.

11-25-2006, 10:00 PM	#3
89_coupe Registered Member Join Date: Oct 2006 Location: cape breton Posts: 13	Re: conversion question!!! ok...yeah...what im doin is a 5.0 swap, i bought the car, all the work is done, but no wire harness or computer...was just wondering if the gear from a crown vic would work!!! __________________ The Roadhammer

12-04-2006, 07:39 PM	#4
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	Re: conversion question!!! You may have to rewire somethings, but yeah basically. Just plug and play. __________________ 2003 GT White---STOLEN May you burn in hell whoever took it. Dumbazz didn't even get the good engine that was in the garage.

12-05-2006, 12:30 AM	#5
Kick_Ass2k1 Registered Member Join Date: Dec 2006 Posts: 1	Re: conversion question!!! The harness will work, but the computer may or may not. Some of the 5.0 vics were non-HO. The mustang is HO. The way to tell if your engine is an HO engine is by the firing order (HO being 1-3-7-2-6-5-4-8, non-HO being 1-5-4-2-6-3-7-8). You need a computer to match weather it is HO or non-HO. Also, if you are going to be running a mass-air sensor, the engine has to be HO with either a A9L or A9P computer. Check out www.fordfuelinjection.com for more info.

12-11-2006, 12:21 AM	#7
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Re: conversion question!!! You will need a harness from another from a 90-92 Ford mustang. Those years are the only ones that will correctly match up to your chassis harness. __________________ 1987 Buick T-type 1998 HD Electra Elide

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