P1138 OBD Trouble Code

1 result found

P1138 - Mazda
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Heated oxygen sensor (HO2S) adaptive limit achieved
Location Rear
Cause

Wiring, HO2S, exhaust system, ECM

Try also: https://www.obd-codes.com/p1138