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Power Strokes
7.3 Aftermarket
What would cause low ICP and low IPR duty cycle?
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[QUOTE="V-Ref, post: 1050121, member: 660"] I'd check- Tighten Hpop gear bolt Double check that IPR (was it new out of the box, could it now be contaminated, is the tin nut tq'd properly, is the plug in good shape) Unplug the IPR, and the engine harness at the firewall from the pcm, and ohm the two pins to ground while twisting on the engine harness looking for a short. Do the same thing but with one multimeter lead at the IPR plug and the other at the firewall PCM plug and twist on the engine harness looking for an open. [/QUOTE]
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7.3 Aftermarket
What would cause low ICP and low IPR duty cycle?
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