1996 GMC Suburban Electrical short

1996 GMC SUBURBAN
180,000 MILES • V8 • 4WD • AUTOMATIC
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DWAY166184
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  • 1 POST
Check engine light came on. Diagnosed with bad throttle sensor and EGR module. Both replaced. Drove it home, check engine light came on again. Returned to shop, replaced the computer. Left again, light back on. Saying a short between computer and the sensor and module. Can't find it, any suggestions where to look? or is it something else?
Nov 7, 2010 at 12:17 PM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
As far as sensor issues, I check the wiring circuits first, ref voltage-- ground--signal, where applicable, go from there.

If you know which wire has a short, leave a pigtail at both ends, splice in a new wire. Sometimes the connector has a problem?
Nov 7, 2010 at 12:25 PM
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