ECM blows

1989 CHEVROLET SUBURBAN
250,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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ED GOSS
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  • 1 POST
The 10 amp fuse for the ECM blows when key is turned to start. Unplugging the ECM does not help.
Oct 15, 2018 at 8:27 AM
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STRAILER
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It sounds like the ignition coil is shorted. Can you disconnect it and try it again please? Please let me know, Cheers, Ken

Oct 16, 2018 at 11:12 AM