lukas_williams1

Lexus IS diesel check engine light and exhaust sensor

Hi, I have a 2006 Lexus IS with a diesel engine. Recently, the check engine light came on. I've noticed reduced engine power and higher fuel consumption. I suspect it might be a faulty exhaust temperature sensor. Any ideas?

A 2006 Lexus IS with a diesel engine experienced a check engine light, reduced power, and increased fuel consumption. The suspected cause was a faulty exhaust temperature sensor. It was advised to check for leaks or damage in the exhaust system, as these could affect the car's performance. After professional inspection, a leak was found and repaired, along with the replacement of the exhaust temperature sensor, resolving the issue.

Did this summary help you solve your problem?

4 comment(s)

Hey, I have an IS too. I had similar symptoms a while back. The check engine light, power loss, and worse gas mileage all point to something in the exhaust system. Have you checked for any obvious leaks or damage there? The exhaust temperature sensor, also known as heat sensor or exhaust sensor, is an exhaust component monitored by the engine management system. If the sensor is faulty, or there is a leak, the car will be affected.

Thanks for the info. I haven't checked for leaks myself. Where exactly should I be looking in the exhaust system?

Honestly, unless you're comfortable working under the car, it's best left to a professional. Exhaust systems can get very hot and there might be dangerous gases. I'd suggest taking it to a workshop. They can do a proper inspection and pinpoint the exact issue. It’s most likely a leak somewhere near the exhaust sensor. Good luck!

Okay, thanks for the advice. I took it to a shop, and you were right, there was a leak in the exhaust system. They replaced a section and the exhaust temperature sensor. The total repair cost was 265€. Everything seems to be running smoothly now.

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