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Old 04-08-2009, 01:12 PM   #3 (permalink)
BamZipPow
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Okay...looked over my 1998 T100 3.4L wiring harness...

The wires that branch off of that loom are:
TPS (3-wire, black plug)
Fuel injection (2-wire, gray plug)
IAC valve (3-wire, gray plug)
Coil pack (2-wire, black plug)
Bundle to the rest of the fuel injectors/coil packs

The high idle can still be attributed to a sticking IAC valve. I would go and clean it.
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