P0101 means mass air flow circuit range/performance. The MAF sensor's readings don't match what the computer expects. The MAF measures incoming air — when it's wrong, fuelin
Drive gently and get it diagnosed within days.
The MAF sensor's readings don't match what the computer expects. The MAF measures incoming air — when it's wrong, fueling is wrong: hesitation, rough idle, poor mileage.
Oil/dirt on the sensing wire — cleaning often fixes it.
Aged out.
Unmetered air.
Restricted flow skews readings.
Circuit issue.
Typically $10–$400
MAF cleaner ~$10 DIY; sensor replacement typically $150–$400. Estimates vary by vehicle. Costs are estimates and vary by vehicle, location, and shop.
Safe to drive. Try MAF cleaner spray first ($10 DIY) — it resolves this code more often than you'd think.
Typically $10–$400. MAF cleaner ~$10 DIY; sensor replacement typically $150–$400. Estimates vary by vehicle.
Drive gently and get it diagnosed within days.
The most common cause is dirty maf sensor. Oil/dirt on the sensing wire — cleaning often fixes it.