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Electric plug identification ?

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Old May 22, 2018 | 06:09 PM
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Electric plug identification ?


Hi working on finishing a 7.3 idi swap that someone else started. Figured out most things but looking for help identifying 3 plugs and what they connect to.
1. (currently on right front of driver's side)
2.
3.


Number 1
 
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Old May 22, 2018 | 09:24 PM
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What years (for the engine and the vehicle)? van or truck? RV?
 
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Old May 22, 2018 | 09:42 PM
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Not a 100% sure I was told it was taken out of an 1988 or 1989 Ford Truck F250. I know that it is an idi, no computer, direct injection.
 
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Old May 22, 2018 | 10:51 PM
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#3 looks like a 3G alternator plug, but I could be wrong. Look down the wire and see if the PO spliced in that connector. If it's original (and not spliced), then this must be a newer IDI probably from a '93 or '94. But if it's spliced in, then the PO upgraded the original 1G alternator to a 3G or something better.

As for the others, I don't know, because I'm an IDI van expert. I don't know much about the trucks.
 
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Old May 23, 2018 | 07:33 AM
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Where are plugs #2 and #3? The pics clearly show that #1 is next to the driver's valve cover but I have no idea where the others are. Are they along the frame? I see one of the tires in the pic. I @$$ume you have the fenders or bed removed from the truck.
 
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Old May 23, 2018 | 09:42 AM
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It is in an early Bronco frame now, number 2 and 3 are currently on the left front passenger's side. Number 1 is on the front of the motor top area near valve cover.

thanks
 
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Old May 23, 2018 | 10:56 AM
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#1 looks like a plug for the AC compressor.


 
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Old May 23, 2018 | 10:58 AM
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Thanks, that is a big help.
 
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Old May 23, 2018 | 11:04 AM
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#2 and #3 look like the plugs to the main wiring harness for the following.

AC compressor.
Tach sensor
alternator exciter and light

on my 93, it’s right behind the passenger side battery below the starter relay. The wire colors should be traceable to the corosponding plugs.

 
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