B3779

Symptoms

• Unstable idling
• Reduced engine power
• Increased fuel consumption
• Dips when pressing the gas pedal
• Malfunction indicator light comes on

Causes

• Malfunction of the mass air flow sensor (MAF)
• Problems with the absolute pressure (MAP) sensor
• Dirty or faulty throttle valve
• Open or short circuit in wiring harness
• Dirty air filter
• Problems with the air intake system

How to Fix

1. Diagnosing error codes with an OBD-II scanner
2. Visual inspection of the air path and wiring harness
3. Checking the MAF and MAP readings
4. Cleaning or replacing the throttle body
5. Replacing the air filter
6. Cleaning or replacing faulty sensors

Related codes

Error B3779 by Vehicle Brand