alexandertiger6
Express oxygen sensor heater failure
Summary of the thread
The conversation revolves around a persistent oxygen sensor heater failure in a 2012 Chevrolet Express, leading to a check engine light and increased fuel consumption. The initial suspicion was a faulty component after checking the cable and plug. A similar issue was resolved by replacing the faulty sensor, which was confirmed by a technician.
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4 comment(s)
alexandertiger6 (community.author)
The error is persistent, it comes back right after clearing it. Can you tell me more about how you tested the sensor? I want to understand the diagnostic steps better.
ottobauer40
Since it's persistent, it's probably more than just a loose connection. My problem was a faulty sensor. I'd suggest seeing a technician; exhaust systems need special equipment to test properly.
alexandertiger6 (community.author)
I took your advice and saw a technician. It was the oxygen sensor, and it needed to be replaced. The total cost was 95€. Thanks for the help figuring this out.
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CHEVROLET
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EXPRESS
ottobauer40
I have an Express and had a similar oxygen sensor issue. Check engine light and fuel consumption were my symptoms too. Test the sensor thoroughly, especially the heater element. Was the error intermittent or always there?