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What sensor might be bad to cause a check engine light to go on after car is warm?
Wiki User
∙ 12y ago
I would look at the O2 sensors for the exhaust and catalytic converter.
Additional InformationA computer diagnostic will tell you what code is being stored. When the light is on it just means that the computer has information that you need to know. You can usually borrow, rent or buy a code scanner from most local auto parts retailers. Auto Zone and Checker Auto Parts will often scan the code for you, without charge, on the hopes that you'll buy the parts from them. The advantage of using the code scanner is that then you know for certain what part is acting up. Yes, the problem is most likely the O2 sensor, but there are other possibilities as well. Don't guess, get the information from the computer then you'll know.BTW, the procedure is quite simple, even I can do it.
Wiki User
∙ 12y ago
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