Paccar

PACCAR MX (2004 Emissions) Fault Code: P0275 Cylinder 5 – Torque Contribution Too Low SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 5 is lower relative to the other cylinders. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is running at a steady speed and load, and the vehicle speed is steady. CORRESPONDING OBD READINESS MONITOR:Fuel system monitor 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 following conditions:– Corresponding readiness monitor displays ‘Ready’– Diagnostic conditions are met– Set...

PACCAR MX (2004 Emissions) Fault Code: P0278 Cylinder 6 – Torque Contribution Too Low SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 6 is lower relative to the other cylinders. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is running at a steady speed and load, and the vehicle speed is steady. CORRESPONDING OBD READINESS MONITOR:Fuel system monitor 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 following conditions:– Corresponding readiness monitor displays ‘Ready’– Diagnostic conditions are met– Set...

PACCAR MX (2004 Emissions) Fault Code: P0298 Engine Oil Temperature – Data Valid but Too High, Most Severe SET CONDITIONS:MX-11:The PCI ECU (D420) detects that the oil temperature has reached higher than 130°C [266°F] for more than 2 seconds. MX-13:The PCI ECU (D420) detects that the oil temperature has reached higher than 128°C [262°F] for more than 2 seconds. DIAGNOSTIC CONDITION:This diagnostic runs continuously when the ignition is on. 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...

PACCAR MX (2004 Emissions) Fault Code: P0301 Cylinder 1 – Contribution Too Low or Misfire SET CONDITIONS:The PCI ECU (D420) detects that cylinder 1 is misfiring or the combustion contribution is lower relative to the other cylinders. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is running at a steady speed and load, and the vehicle speed is steady. CORRESPONDING OBD READINESS MONITOR:Misfire monitor 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 following conditions:– Corresponding readiness monitor displays ‘Ready’– Diagnostic conditions are...

PACCAR MX (2004 Emissions) Fault Code: P0302 Cylinder 2 – Contribution Too Low or Misfire SET CONDITIONS:The PCI ECU (D420) detects that cylinder 2 is misfiring or the combustion contribution is lower relative to the other cylinders. DIAGNOSTIC CONDITION:This diagnostic runs when the engine is running at a steady speed and load, and the vehicle speed is steady. CORRESPONDING OBD READINESS MONITOR:Misfire monitor 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 following conditions:– Corresponding readiness monitor displays ‘Ready’– Diagnostic conditions are...