EcoModder.com

EcoModder.com (https://ecomodder.com/forum/)
-   DIY / How-to (https://ecomodder.com/forum/diy-how.html)
-   -   O2 Sensor problem Need help! (https://ecomodder.com/forum/showthread.php/o2-sensor-problem-need-help-8492.html)

Curly1 05-23-2009 04:58 PM

O2 Sensor problem Need help!
 
I have an 08 Chevy HHR with the 2.2 Ecotoec engine. I love it and have made a bunch of changes to improve mileage. Now I have run into a problem and hope someone here can help. My mileage has been down some latetly. Did a data log on it and it shows fuel trims on the lean side so the ECU is adding additional fuel and hurting mileage some. The O2 sensors says it is a little lean. The car only has 25,000 miles so I would think the O2 sensor is still good.

Any suggestions on how to correct the problem?
Thanks in advance. Curly

Ford Man 05-23-2009 06:50 PM

The 02 sensors should still be good. Usually if an 02 sensor goes bad it will have a drastic effect on FE, usually causing a 25-35% drop. If the 02 sensor is bad you also should have a CEL. The plugs should still be in good condition, but you might want to pull them out take a look at them, clean them and regap them.


All times are GMT -4. The time now is 05:15 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com