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How to test injector driver?

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Old 03-28-2013, 02:38 PM
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Default How to test injector driver?
Hey guys i need to find out my dtc 18 still and its killing me. I looked at all my injector wires they dont look cracked or damaged. Can someone pls help me with my problem.
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Old 03-28-2013, 03:38 PM
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You should use a meter to check the integrity of the wires. You can also check the resistance of the injectors (should be ~12 ohms). I would suspect something in the PCM last.
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Old 03-28-2013, 04:32 PM
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all pink wires have 12v, and all injectors have 12.8 ohms. So i pulled my wire harness out and seperated all of the injector wires from the harness to further inspect cracks or slices in the wire and everything looks good.
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Old 03-28-2013, 04:37 PM
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Did you meter all the ground wires going back the PCM? (test continuity with PCM unplugged and meter leads at PCM connector and injector connector)
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Old 03-28-2013, 04:52 PM
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ok a little confused. How do i test the ground wires going to pcm?
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Old 03-28-2013, 06:40 PM
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ok so i ohmd the wires from injector connector to pcm connector and i get 2.0-1.9 on all of the injector connectors. Is that ok???
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Old 03-28-2013, 08:52 PM
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Old 03-28-2013, 09:16 PM
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I always use a Fluke 98A digital storage lab 'scope to check the wave form. Check a couple of good ones for a reference. Back probe the ground side and ground the 'scope's ground lead to Batt -.
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Old 03-31-2013, 05:00 PM
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I've never used one before and they seem to be pretty expensive. is there any other test I can do to the wiring harness? I think its one of my injector pig tales that are messed up
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