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Home >> Infiniti >> 1995 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 4.5L >> Ignition System >> Ignition Timing Control System >> Ignition Retard Operation
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Ignition Retard Operation

  1. Problems with knock sensor retard circuit should set a Code 34. If code is present, see Code 34 test procedure in appropriate TESTS W/CODES article.
  2. Check knock sensor wire for open or short to ground. Check knock sensor shield ground wire for continuity to ground. Check routing of knock sensor wire. Wire should not be routed close to spark plug wires or high output accessories.
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