peterfischer1

Lexus CT200h Exhaust Leak

My 2013 Lexus CT200h hybrid is throwing codes. Check engine light is on, engine power feels reduced, and I'm burning more fuel than usual. I suspect a faulty exhaust temperature sensor. Has anyone else run into this?

A 2013 Lexus CT200h was experiencing reduced engine power, increased fuel consumption, and a check engine light, suspected to be due to a faulty exhaust temperature sensor. A suggestion was made to check for exhaust leaks, as a leak upstream of the sensor could cause incorrect readings and related issues. Upon inspection, a small crack in the exhaust manifold was found and repaired, along with replacing the faulty sensor, resolving the problem.

Did this summary help you solve your problem?

4 comment(s)

I had a similar issue with my CT200h. Have you checked for any exhaust leaks? A leak upstream of the sensor can cause it to read incorrectly, triggering those symptoms. It messes with the emission control system.

Thanks! I haven't specifically checked for leaks. Is there a common spot on the exhaust component where these cars tend to develop them? Or any way to easily check it?

On mine, it was a small crack near a weld on the exhaust manifold. Difficult to spot without a thorough inspection. Given your mileage, a failing exhaust sensor is plausible, but the leak would be my primary suspect. Best to get it smoke tested at a shop.

Took it to the shop, and you were spot on! Small crack in the exhaust manifold, right where you described. Replaced the faulty exhaust sensor and fixed the leak; cost me 265€. Runs like new. Thanks for the help!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

LEXUS

community_crosslink_rmh_model

CT200H