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Re: 1998 Suburban Eng1 fuse keeps blowing
ENG 1 fuse feeds a pink wire that feeds the camshaft position sensor, MAF sensor, all 4 oxygen sensor heaters, and the canister purge solenoid. You'll need to catch it when it's shorting out to find it, (very tough to find). The most likely cause is a heater in one of the oxygen sensors is shorting out. You can try disconnecting the oxygen sensors one at a time and drive it and see if the fuse blows. When ENG 1 pops, all of those sensors will set DTC's, which is what you're getting.
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