What causes a P1350 code?

P1350 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a P1350 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P1350 active.

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

OBD-II

P1350

VGT status invalid fault detected

What it means

The ECM is receiving inconsistent or invalid feedback signals from the Variable Geometry Turbocharger (VGT) actuator regarding its current vane position or internal calibration status.