1999 GMC Savana blows 20 amp fuse named eng 1

1999 GMC SAVANA
210,236 MILES • V8 • 2WD • AUTOMATIC
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HARRY44M
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  • 2 POSTS
what do eng 1 fuse energize ?
Jul 25, 2009 at 12:08 PM
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BUDDYCRAIGG
  • ✓Experienced Mechanic
  • 2,262 POSTS
It's different for each engine.
which V8 do you have?
Jul 25, 2009 at 5:04 PM
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HARRY44M
  • MEMBER
  • 2 POSTS
5.7L vortec
Jul 26, 2009 at 1:11 AM
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BUDDYCRAIGG
  • ✓Experienced Mechanic
  • 2,262 POSTS
it's a pink wire and goes to...

all 4 o2 sensors.
mass air flow sensor
evap emission canister purge valve solenoid
evap emission canister vent valve
crankshaft position sensor
Jul 26, 2009 at 10:41 AM
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