P1178 Possible Causes
- Faulty O2 sensor
- O2 sensor harness is open or shorted
- Poor electrical connection in O2 sensor circuit
How to Fix Code P1178?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1178 Meaning
Linear Oxygen Sensor Pump Current Open Circuit is the generic description for code P1178, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about OBDII code P1178.