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Will a bad spark plug cause an oxygen sensor failure code?
I noticed that my car’s O2 sensor code popped up on my dashboard the other day, even though I recently replaced this sensor two months ago. I’m trying to figure out what the problem may be—can a bad spark plug cause an oxygen sensor failure code?
Annette Maxon · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Figuring out the root problem behind warning codes is always a huge headache! Hopefully, we can get it sorted out quickly.
Yes, a bad spark plug can confuse your car’s internal computer and trigger the O2 sensor code.
In some cases, driving with a faulty spark plug can be dangerous. Not only could your engine malfunction while on the road, but driving with a bad spark plug may also cause long-term damage to your engine. To make sure your car is protected in case an accident happens, it’s good to make sure you have the right
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