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Old 11-18-2006, 09:15 PM   #1
89_coupe
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Default 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
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Old 11-25-2006, 10:21 AM   #2
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Default 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.
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Old 11-25-2006, 10:00 PM   #3
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Default 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!!!
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Old 12-04-2006, 07:39 PM   #4
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Default Re: conversion question!!!

You may have to rewire somethings, but yeah basically. Just plug and play.
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Old 12-05-2006, 12:30 AM   #5
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Default 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.
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Old 12-07-2006, 06:55 PM   #6
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Default Re: conversion question!!!

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
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Old 12-11-2006, 12:21 AM   #7
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Default 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.
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