Any real Chevy mechanics on this board?
2006 Chevy 2500HD - 6.0 - Automatic - low miles. When I bought this truck the dealer had just replaced the code P1101 - Mass Airflow sensor. Check engine light was out and everything seemed fin...
Forum Discussion
With the engine off I'd remove and reinstall the fuses. I've run into o2 snsor codes that were caused by slight resistance in the fuse circuit. At 12 years old connections can become an issue.
