Possible causes

– Faulty Front Oxygen Sensor
– Front Oxygen Sensor harness is open or shorted
– Front Oxygen Sensor circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1132 SUBARU Description

A Heated Exhaust Oxygen (HO2S) sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.