2004 Chevrolet Silverado OBD2 Codes C0220, C0281, C0222 - Diagnosis and Troubleshooting

Model: 2004 silverado Fault Code: C0220 Posted: 2016-02-04 06:41

I recently purchased a used 2004 Chevrolet Silverado with 128,000 miles. Approximately 30 minutes after leaving the dealership, the vehicle began displaying OBD2 diagnostic codes C0220, C0280, and C0222. There have been no noticeable changes in driving performance—no pulling, dragging, or loss of power. The ABS and brake lights remain off. I'm looking for help identifying the root cause without immediately replacing parts. These codes are specific to the 2004 Silverado's emissions and fuel system, so any insights into possible sensor failures, wiring issues, or evaporative system problems would be greatly appreciated. Thanks for your guidance, Roger.