100% Free

No Scanner Needed

Carly logo
Prices

mikawilliams6

Malibu Hybrid Oxygen Sensor Issue

Having trouble with my 2019 Chevrolet Malibu Hybrid. Check engine light's on, OBD scanner says it's an oxygen sensor error, and I'm burning way more fuel. Think it's a bad cable or plug. Anyone seen this before?

Summary of the thread

A 2019 Chevrolet Malibu Hybrid is experiencing a check engine light and increased fuel consumption, with an OBD scanner indicating an oxygen sensor error. The issue is suspected to be caused by a bad cable or plug, possibly due to corrosion or damage in the wiring harness. Cleaning attempts were unsuccessful, leading to the recommendation of professional inspection. Ultimately, the oxygen sensor and cable were replaced, resolving the problem and normalizing fuel consumption.

Did this summary help you solve your problem?

4 comment(s)

simonsky10

I had a similar headache with my old Audi A4. Check engine light, O2 sensor code... the works. In my case, the car was guzzling fuel like crazy. Did you check the sensor's wiring harness for any corrosion or damage? That was the culprit in my case.

mikawilliams6 (community.author)

Thanks, I appreciate it. I checked the wiring and connectors, and there's a lot of grime and some corrosion. I cleaned it, but no luck. Any cleaning tips, or should I just replace it?

simonsky10

Cleaning might help for a bit, but with corrosion that bad, it'll probably keep happening. Since it's a hybrid, the O2 sensor could mess with the exhaust system too. I'd get a pro to look at it before you waste time guessing. Better safe than sorry!

mikawilliams6 (community.author)

Took your advice and went to a shop. You were right, the oxygen sensor was old and the cable was bad. Cost 95€ to fix, and my fuel consumption is back to normal. Thanks again!

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

CHEVROLET

community_crosslink_rmh_model

MALIBU