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The relay should have eventually stopped showing voltage depending on how cold the engine was, up to 2 minutes I think? Try this clip the positive lead to the output terminal with yellow and brown wires connected, and the negative lead to a good ground point. Turn the key to on. If your GPR is good, it should click, and you’ll see 11 volts or so on your meter. You should do this a couple of times to make sure it consistently makes the connection. If you don’t get voltage with this test. Remove the two small wires from the smaller two of the four GPR terminals. If your voltmeter now reads voltage on the output terminal, your GPR is ok, and the problem could be in your PCM. Hope this helps
02' F-350 Lariat 4x4 CC DRW 6spd Afe stage 2, banks 4" exhaust, Autometer C2 gauges and some tunes by Tipton
Last edited by trrun; 11-12-2006 at 11:55 AM.