Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** you tell me how many miles are on the vehicle?
Thank you. It sounds like you have an issue with a vacuum leak. Most of the time this engine leaks vacuum at the intake manifold gasket. It can also be a failure in the MAP sensor. If the MAP sensor is not reading correctly then it will cause the computer to inject the wrong amount of fuel.
Some of the time you will get a MAP sensor code but not always. If the TBI gasket is leaking that can cause it also, but those do not leak too often.