P1134 CHEVROLET Possible Causes
What does this mean?
- Faulty HO2S Sensor, Bank 1 Sensor 1
- HO2S Bank 1 Sensor 1 harness is open or shorted
- Poor electrical connection in HO2S Bank 1 Sensor 1 circuit
How to Fix Code P1134 CHEVROLET?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the code detected?
P1134 is set if the Powertrain Control Module (PCM) detects that the HO2S ratio is out of range.
Possible Symptoms
- Check Engine Light On (or Service Engine Soon Warning Light)
P1134 CHEVROLET Meaning
The Powertrain Control Module