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Home >> Mazda >> 2011 >> CX-7 s Touring, 2.3 L, FWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3 With TC] (4 Of 5) >> DTC P120F:00 >> Notes

DTC P120F:00: Notes

DTC P120F:00 (L3 WITH TC) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P120F:00 Fuel pressure regulator excessive variation
DETECTION CONDITION 
  • If the fuel pressure average value measured by the PCM exceeds the specification when the camshaft is rotating at a specified rate, the PCM determines that there is a fuel pressure regulator performance problem.
Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL does not illuminate.
  • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
  • DTCs are stored in the PCM memory.
POSSIBLE CAUSE 
  • High pressure fuel pump connector or terminals malfunction
  • Spill valve control solenoid valve malfunction
  • PCM connector or terminals malfunction
  • PCM malfunction
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