VIDEO

Alfa Romeo DTC

Alfa Romeo DTC P0138

Manufacture

Alfa Romeo DTC

Code

P0138

Definition

O2 Sensor Circuit High Voltage Bank 1 Sensor 2

Description

The Powertrain Control Module (PCM) detects that the O2 Sensor 1 2 voltage is above 4.4 volts for 5.4 seconds.

Cause

  • O2 Sensor 1 2 Heater Control Circuit Shorted To VoltageO2 Sensor 1 2Powertrain Control Module (Pcm)

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