P1421 OBD Trouble Code

1 result found

P1421 - Subaru
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Exhaust gas recirculation (EGR) system - voltage high
Cause

Wiring open/short to positive, EGR solenoid, ECM

Try also: https://www.obd-codes.com/p1421