Need to replace upstream 02 sensor?

2002 CHRYSLER 300M
56,000 MILES • 3.6L • V6 • 2WD • AUTOMATIC
Avatar
DANNYBOY5474
  • MEMBER
  • 35 POSTS
Need to replace upstream 02 sensor Bank1/sensor1. Which side of vehicle? I pass or driver? Thanks
Mar 15, 2025 at 9:35 AM
Advertisement
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,238 POSTS
Bank one is the cylinder bank on the passenger or right side of the engine. What is the reason for replacement? Shorted heater or slow response?
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 15, 2025 at 5:58 PM
Avatar
DANNYBOY5474
  • MEMBER
  • 35 POSTS
Yes, had a bad sensor so needed to replace to get CEL off. Drove 30 miles and passed smog. All good, thanks!
Mar 16, 2025 at 6:04 AM
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,238 POSTS
Good to hear. Stop by anytime with automotive questions.
Mar 16, 2025 at 3:25 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.