PACCAR MX (2004 Emissions) Fault Code: P1866 Exhaust Gas Pressure Before Turbine - Data Valid but Too High

PACCAR MX (2004 Emissions) Fault Code: P1866 Exhaust Gas Pressure Before Turbine - Data Valid but Too High

SET CONDITIONS:
The PCI ECU (D420) detects that the pressure before turbine is more than 9 bar.

DIAGNOSTIC CONDITION:
This diagnostic runs continuously when the engine is running.

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:
1. Clogging tube of the pressure sensor before turbine
2. Pressure sensor before turbine deviation
3. Malfunction of the VTG turbocharger or turbocharger actuator

If you want to know other articles similar to PACCAR MX (2004 Emissions) Fault Code: P1866 Exhaust Gas Pressure Before Turbine - Data Valid but Too High you can visit the category DTC TRUCKS.

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