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Home >> Honda >> 2021 >> Insight EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Advanced Diagnostics (1 Of 2) >> Advanced Diagnostics >> DTC P0651 >> Possible Cause
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Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • A/C pressure sensor VCC line short to power
  • Accelerator pedal position (APP) sensor VCC line short to power
  • EGR valve VCC line short to power
  • Rocker arm oil pressure sensor VCC line short to power
  • Camshaft position (CMP) sensor A VCC line short to power
  • Camshaft position (CMP) sensor B VCC line short to power
  • Transmission fluid pressure sensor VCC line short to power
  • Fuel tank pressure sensor VCC line short to power
  • A/C pressure sensor VCC line short to ground
  • APP sensor VCC line short to ground
  • EGR valve VCC line short to ground
  • Rocker arm oil pressure sensor VCC line short to ground
  • CMP sensor A VCC line short to ground
  • CMP sensor B VCC line short to ground
  • Transmission fluid pressure sensor VCC line short to ground
  • Fuel tank pressure sensor VCC line short to ground
  • EVAP leak check module internal circuit failure
  • PCM internal circuit failure