P1132 – Air/Fuel Ratio Sensor Circuit High
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Symptoms
- Rough idle
- Hesitation
- Poor acceleration
- High fuel trims
- Check engine light
Causes
- Faulty AFR sensor
- Rich mixture
- Wiring issue
- Connector problem
- ECU issue
Diagnosis
- Inspect AFR wiring
- Test sensor voltage
- Inspect connectors
- Scan live data
- Check fuel trims
Repair
- Replace AFR sensor
- Repair wiring
- Fix connectors
- Address rich mixture
- Update ECU