P1401 OBD Trouble Code

1 result found

P1401 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Exhaust Gas Recirculation Flow Test Conditions

Cause

No PCM codes set, throttle angle under 2%, ECT over 180°F, engine speed at 900-1100 rpm, BARO over 70 kPa, VSS over 20 mph, then the PCM detected that the MAP changes monitored during the EGR Flow Test indicated insufficient EGR flow

Try also: https://www.obd-codes.com/p1401