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Old 03-10-2012, 11:54 PM   #1
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Electrical problems

I bought a 1994 mustang gt a few years ago and the check engine light was on. It runs good most of the time but sometimes it won't idle right. I have a few ideas of what it could be wrong but not sure. For some reason it has the obd1 and obd2 hook ups but neither one works because some genius tried to hook up a keyless entry system on it at some point and did a horrible job. Not sure whether I need to try to remove the keyless entry system or if there is another way around it to get the hook ups to work. I would like to know for sure what's wrong before I start buying parts.
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Old 03-10-2012, 11:58 PM   #2
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It has OBD2 plug because the V6's had OBD2, yours has OBD1 for sure.

Not sure why someone would go into those types of connections for keyless entry.
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Old 03-11-2012, 12:10 AM   #3
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Yeah I'm really not sure why either. The keyless system is wired in under the dash and the wires are all messed up so I'm not sure how they were originally.
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Old 03-11-2012, 11:20 AM   #4
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i would try to remove thekeyless entry and get it back to original.any current electril problems may lead to worse problems later.
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Old 03-11-2012, 11:44 AM   #5
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I was afraid that's what I'd have to do. Hopefully I can figure out which wires are which.
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Old 03-11-2012, 11:46 AM   #6
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a haynes or chilton should have all the wiring diagrams you need.
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Old 03-11-2012, 11:54 AM   #7
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I didn't think about that. That would be awesome if it does!
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Old 03-11-2012, 11:55 AM   #8
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Look in the back.if can't find what you need google search: 94 mustang wiring diagram... Also hit the images tab during search.
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Old 03-11-2012, 12:13 PM   #9
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Ok cool. Ill check that out. Thanks!
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