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Old 01-01-2011, 08:26 PM   #1
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Foxbody switching to EFI

I've got a 89 4 cyl conversion with a carbourated 302. Will a 4 cyl computer and wiring be sufficient if I still have 4 cyl gauge cluster. Or do I need 5.0 computer and wiring?
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Old 01-01-2011, 10:59 PM   #2
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Re: Foxbody switching to EFI

Depends on the ignition setup your 4 banger had, if it was 8 spark plug 4 banger then no, all others will work. I myself would convert to the duraspark or go with a msd ignition.
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Old 01-01-2011, 11:00 PM   #3
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I have not done one but own a converted car and have replaced harnesses. The engine and pcm harness are separate from the body harness I think. All you should need is a5.0 computer and engine harness. It's pretty easy. The dash harness is not changed.
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Old 01-01-2011, 11:05 PM   #4
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Re: Foxbody switching to EFI

Also I know on the older fox's they had a switch on the gauge cluster near the right hand side at the top that you can switch it so your rpm gauge would be accurate, Don't know if its like that on the newer ones, the one I had was a 79.
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