The emissions-control system of most modern vehicles uses an oxygen (O2) sensor to measure the amount of oxygen in the engine exhaust. The sensor transmits this data to the vehicle's computer by means of an electrical wire. The computer interprets the data and makes adjustments to the air/fuel mixture while the engine is running. The O2 sensor requires periodic replacement. On the Chrysler Sebring Convertible, there are two sensors, which are accessed from underneath the vehicle.
Things You'll Need
- Lift jack
- Wheel chalks
Park the vehicle on a level surface, set the parking brake, and shut off the engine. Let the engine and exhaust system cool completely before proceeding.
Set wheel chocks on each side of one of the vehicle's rear tires. Lift the front of the vehicle with the jack to allow access to the vehicle from underneath.
Slide underneath the vehicle on the passenger side, below the seating area, and locate the exhaust pipe and catalytic converter.
Look at the exhaust pipe on either side of the catalytic converter. The sensors are threaded into the pipe on each side of the converter. They each protrude from the exhaust pipe and have a wire cable coming off the top going to a electrical connector a short distance away.
Tips & Warnings
- Let the engine and exhaust system cool completely before starting this procedure to avoid burns.
- Photo Credit Jupiterimages/Photos.com/Getty Images
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