HiCustomer Thank you for asking your question on Just Answer. The other Experts and I are working on your answer. By the way, it would help us to know:
-What year is your Chevy?-What model is your Chevy?-What type of engine is in your Chevy?Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
Below is a pic of some information about the possible causes of this code. Some testing will be needed to determine the actual problem,