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#1
02-08-2011, 09:27 PM
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1997 1500 w/305 Vortec blowing ecm-i fuse and coils
I have a truck I am working on that has started to eat ecm-i fuses and coils. Should I be looking for shorted wires or does this sound pcm related? Truck has 370K KM so it is definitely far from new, lol. Any suggestions?
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Last edited by b1lk1; 02-09-2011 at 11:25 AM. 
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#2
02-09-2011, 12:04 PM
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Re: 1007 1500 w/305 Vortec blowing ecm-i fuse and coils
From my '98 service manual it looks like the ECM-1 fuse supplies ign voltage to the VCM, CKP, ICM, Coil & all fuel injectors. This power comes from the ign sw in the "run" & "start" positions.
So, the ? is, does the fuse blow in the run position or start position and is it consistent or just sometimes?
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57 Chevy 210 65 Olds 442 Convertible (Another one sold) 75 GMC Vandura 3/4 Ton 1999 K2500 Old Body Style Suburban (Gone but not forgotten) 05 Dodge Ram 3500/5.9 Cummins 2012 Toyota FJ Cruiser
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