How to find and replace c02 sensor?

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. Stop - do not try to locate and replace sensors. If you do not know where they are located - I cannot imagine that they have been properly tested. Testing is needed to determine if the sensor or sensors are faulty or not. Seek guidance at a shop near you to help troubleshoot your concerns before making repairs. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.