Quote:
Originally Posted by TnBob
The wires can be tested from the larger of the plugs in your gp relay. Pop it off and there are the termination points for each gp clearly marked on the connector.
To ground, each of them should read less than one ohm. Best scale to read them on is your lowest one.
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that's a fast way to test them. BUT I must still emphasizes that you look at the glow plugs as a resistor....if you test them through the wiring harness...all that wire adds resistance....you have to remove them from the circuit to get a proper reading....