simonmeyer6

Lexus IS Diesel Rough Idle Water Sensor

My 2007 Lexus IS diesel is acting up. Check engine light, error stored, and rough running, especially at idle. Mileage is 85892 km. Codes point to the water sensor. Could a defective cable or plug connection be the cause? Visually the sensor looks ok, but could a simple disconnection cause all this?

A 2007 Lexus IS diesel was experiencing rough idling and a check engine light, with error codes pointing to the water sensor. The issue was suspected to be caused by a defective cable or plug connection rather than the sensor itself. After visiting a workshop, it was confirmed that the problem was indeed a defective cable, which was repaired, resolving the issue.

Did this summary help you solve your problem?

4 comment(s)

Interesting problem. I had something similar with my old Opel Astra, although the root was different. Engine light, rough running… Are you positive the sensor itself is functional, or might it just be reporting incorrect data?

Good point. How did you diagnose your Astra's issue? Did you have to replace the sensor, or was it wiring as well?

In my case, the garage confirmed it was a faulty sensor. I'd suggest taking your Lexus to a workshop. They can use professional tools for detailed testing and pinpoint it.

Thanks for the insight. I took your advice and went to a workshop. Turns out, it was exactly what I suspected. The cable for the component was defective. They fixed it for 95€, and now she's purring like a kitten again. Appreciate 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