PACCAR MX (2004 Emissions) Fault Code: P1235 Turbo Speed – Data Erratic, Intermittent, or Incorrect SET CONDITIONS:The PCI ECU (D420)...

PACCAR MX (2004 Emissions) Fault Code: P1263 Cylinder 1 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects...

PACCAR MX (2004 Emissions) Fault Code: P1266 Cylinder 2 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects...

PACCAR MX (2004 Emissions) Fault Code: P1269 Cylinder 3 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects...

PACCAR MX (2004 Emissions) Fault Code: P1272 Cylinder 4 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects...

PACCAR MX (2004 Emissions) Fault Code: P1275 Cylinder 5 – Torque Contribution Too High SET CONDITIONS:The PCI ECU (D420) detects...