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HELP! Mystery Harness Plug After Swap

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Big28 2gFWD

15+ Year Contributor
108
1
Oct 11, 2004
port st lucie, Florida
Hey guys. Just about finished on my motor swap and am left with a plug that cannot find its home. It's around the intake manifold. Any ideas what this plug is?? 2 wire, one red, one green. thanks for any help!

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The bottom pic shows where the wiring runs for this plug, it's the one in the center with the wire loom.
 

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dont worry about that it aint important. its dangling on all of my cars too. i forget what it was for. egr or a/c maybe.
 
Certainly looks like the A/C plug. Be careful though, one of the plugs that hooks into the coil pack is the same type of connector as the A/C plug. If you've already successfully started your car, then don't worry about it. If you haven't make sure you find both plugs and compare their lengths. The longer one is to the A/C compressor.
 
Certainly looks like the A/C plug. Be careful though, one of the plugs that hooks into the coil pack is the same type of connector as the A/C plug. If you've already successfully started your car, then don't worry about it. If you haven't make sure you find both plugs and compare their lengths. The longer one is to the A/C compressor.

I was just thinking that. It makes me wonder because I swear my A/C plug has 3 wires... Maybe there's a difference for some reason between 2ga and 2gb.
 
It is for the egr temp sensor on California only vehicles. Fed DSM don't have one so the plug is just left there to confuse you. Hope that helps you out.
 
Certainly looks like the A/C plug. Be careful though, one of the plugs that hooks into the coil pack is the same type of connector as the A/C plug. If you've already successfully started your car, then don't worry about it. If you haven't make sure you find both plugs and compare their lengths. The longer one is to the A/C compressor.

He's right, the female connector with black wires is for the coil pack. The one with green and red is for the ac.
 
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