PACCAR MX (2004 Emissions) Fault Code: P1489 EGR Valve – Stuck Closed SET CONDITIONS:The PCI ECU (D420) detects that the...

PACCAR MX (2004 Emissions) Fault Code: P1490 EGR Gas Flow Detected – While the EGR Valve is Closed SET CONDITIONS:The...

PACCAR MX (2004 Emissions) Fault Code: P1495 Engine Protection System – Power Derate Active SET CONDITIONS:This DTC is activated when...

PACCAR MX (2004 Emissions) Fault Code: P1496 Engine Protection System – Protection Mode, Active SET CONDITIONS:This DTC is activated by...

PACCAR MX (2004 Emissions) Fault Code: P1497 EGR Valve Position – Incorrect CORRESPONDING OBD READINESS MONITOR:None REPAIR VERIFICATION:1. Clear all...

PACCAR MX (2004 Emissions) Fault Code: P1498 EGR Valve Position – Incorrect SET CONDITIONS:The PCI ECU (D420) detects that the...