P1101 Intake Airflow System Performance Chevy Malibu Rough Idle: Causes, Diagnosis, and Fix

P1101 on a Chevy Malibu means the PCM has detected a discrepancy between what the mass airflow (MAF) sensor is reporting and what the PCM expects to see based on throttle position, engine speed, and manifold pressure: most commonly caused by a contaminated MAF sensor, a dirty air filter restricting airflow, a cracked or disconnected […]