Incredible 2008 Chevy Colorado Check Engine Light Code Reads Catalyst 2023. Understanding the cause of your check engine light is pivotal, particularly when it starts flashing, as this typically indicates a more serious issue compared to. If the problem is emissions related your car may still be.

Web when one of the sensors detects something out of it's range, it tells the truck's computer, which then throws a code and makes the light appear. It’s idling rough, and the check engine light is blinking. Since then i have tried to use lacquer thinner to run through the engine and clean out the catalytic converter that.