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P300: obd II..Random misfires with intermitent stumbling of engine>

Resolved Question:

I have obd II code p0300. Random misfires with intermitent stumbling of engine> where can I start to fix this?

Submitted: 2 years ago.
Category: Chevy
Expert:  Chevy expert replied 2 years ago.

Welcome to just answer.com. I'm here to help you and your 100% satisfaction is my goal. Checked the wiring very carefully and the connectors at the map sensor that's the manifold pressure sensor,GM has determined that the wiring inside the insulation may become broken a
couple of inches from the MAP sensor

Chevy expert, ASE Certified Technician
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