01 Understanding and Troubleshooting Timing Belt Noises • 02 Transmission Rebuild or Replacement: Making the Right Choice • 03 Is Your Fuel Pump Failing? 8 Critical Signs to Watch For • 04 Why is My Engine Oil Black After an Oil Change? • 05 Don’t Ignore These 7 Signs! Your Timing Belt Might Be Faili… • 06 6×6 Mercedes-Benz G63 Amg W463 Brabus G700 Tuning – The Ult… • 07 How to Clean a Mass Air Flow Sensor • 08 P0104 - Mass Air Flow Circuit Intermittent • 09 CVT Transmission Continuously Variable Gear Mechanism • 10 Mechanics Say This Common Driving Behavior Causes More Engi… •

DTC codes / P21xx · Fuel and air metering

P21xx · Fuel and air metering

P21F0 Cylinder 11 Injector B Circuit Low Powertrain P21F1 Cylinder 11 Injector B Circuit High Powertrain P21F2 Cylinder 12 Injector B Circuit Low Powertrain P21F3 Cylinder 12 Injector B Circuit High Powertrain P21F4 Fuel Control System B Too Lean Off Idle (Bank 1) Powertrain P21F5 Fuel Control System B Too Rich Off Idle (Bank 1) Powertrain P21F6 Fuel Control System B Too Lean Off Idle (Bank 2) Powertrain P21F7 Fuel Control System B Too Rich Off Idle (Bank 2) Powertrain P21F8 Fuel Control System B Too Lean at Idle (Bank 1) Powertrain P21F9 Fuel Control System B Too Rich at Idle (Bank 1) Powertrain P21FA Fuel Control System B Too Lean at Idle (Bank 2) Powertrain P21FB Fuel Control System B Too Rich at Idle (Bank 2) Powertrain P21FC Fuel Control System B Too Lean at Higher Load (Bank 1) Powertrain P21FD Fuel Control System B Too Rich at Higher Load (Bank 1) Powertrain P21FE Fuel Control System B Too Lean at Higher Load (Bank 2) Powertrain P21FF Fuel Control System B Too Rich at Higher Load (Bank 2) Powertrain
Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage