Paccar

PACCAR MX (2004 Emissions) Fault Code: P1266 Cylinder 2 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 2 is higher 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: P1269 Cylinder 3 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 3 is higher 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: P1272 Cylinder 4 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 4 is higher 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: P1275 Cylinder 5 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 5 is higher 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: P1278 Cylinder 6 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects that the combustion contribution of cylinder 6 is higher 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...