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2001 gmc jimmy ecm fuse

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2001 gmc jimmy ecm fuse joe t 2-9-08  
ECM injecter fuse keeps blowing any help? Thanks in advance
Re: 2001 gmc jimmy ecm fuse mike 2-10-08  
Do you have a Vom Meter you can check the resistance of each injector. May have something grounding out.? Most of the Chevy circuits put 12 volts on the injectors and then control the ground side with the ECM. Could be lots of things but I would start with checking the injectors with a good ohm meter. Readings will be very low readings. Good Luck Mike
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