GM Engine Error Code P1153: How to Fix It

Q: What causes GM P1153 error code?

P1153 is typically caused by a faulty oxygen sensor, damaged wiring, exhaust leaks near the sensor, or contamination from oil or coolant leaks. Age-related sensor degradation is the most common cause.

Q: Can I drive with P1153 code?

You can drive short distances, but prolonged driving with P1153 can cause poor fuel economy, rough idle, and potential catalytic converter damage. Have it diagnosed and repaired promptly.

Q: How much does it cost to fix P1153?

Oxygen sensor replacement typically costs $150-$300 including parts and labor. If wiring repair is needed, costs may increase to $300-$500 depending on the extent of damage.

Q: Will P1153 cause my car to fail emissions testing?

Yes, P1153 will likely cause emissions test failure since it indicates the oxygen sensor system isn't working properly to control fuel mixture and emissions.

Abstract

GM error code P1153 indicates that the heated oxygen sensor (HO2S) in bank 2, sensor 1 is not switching properly between rich and lean fuel mixtures. This oxygen sensor monitors exhaust gases and helps the engine control module optimize fuel delivery for proper combustion and emissions control.