PACCAR MX (2004 Emissions) Fault Code: P006B Exhaust Gas Pressure After BPV - Data Erratic, Intermittent or Incorrect, at Ignition On

PACCAR MX (2004 Emissions) Fault Code: P006B Exhaust Gas Pressure After BPV - Data Erratic, Intermittent or Incorrect, at Ignition On

SET CONDITIONS:
The PCI ECU (D420) detects that the measured pressure after BPV differs more than 0.07 bar [1 PSI] from the average of other engine pressure sensor readings for more than five seconds.

DIAGNOSTIC CONDITION:
This diagnostic runs:
1. When the ignition is keyed on (NO engine start), and
2. Ambient temperature is more than -20°C [-4°F]

CORRESPONDING OBD READINESS MONITOR:
None

RESET CONDITION:
This DTC changes to inactive when the fault is no longer detected.

REPAIR VERIFICATION:
1. Clear all DTCs.
2. Test drive or operate the vehicle to meet the diagnostic conditions and set conditions.
3. Did the DTC come back? (Can be pending, inactive or active)
- No, repair successful
- Yes, repair unsuccessful

POSSIBLE CAUSES:
Pressure sensor after BPV deviation

ADDITIONAL INFORMATION:
For this diagnostic, the pressure sensor after BPV (F823) reading is compared with an average of other engine pressure sensor readings.

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