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Home >> Chevrolet >> 2003 >> Suburban C2500, 8.1 G >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures - 8.1L >> Ignition Systems >> Electronic Ignition System >> Test Description

Test Description

The number below refers to step number on diagnostic procedure.

  1. 5 -  Monitoring misfire current counters determines if a fault is present.
  2. 12 -  A good indication that fuse is open is all off misfire current counters are incrementing on one side of engine. Inspect ignition positive voltage circuit for a grounded circuit. If fuse is open and ignition coil circuits are okay, inspect injector circuits for being grounded.

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