P021C

Symptoms

• Unstable engine operation
• Increased fuel consumption
• Reduced engine power
• Misfires

Causes

• Cylinder 9 injector malfunction
• Problems with the fuel pump
• Low pressure in the fuel system
• Malfunction of sensors (mass air flow sensor, crankshaft position sensor, etc.)
• Wiring harness damage
• Problems with the engine control unit

How to Fix

1. Check the condition of the injector of cylinder 9
2. Check the pressure in the fuel system
3. Check the operation of the fuel pump
4. Check the condition of the sensors and wiring harness
5. Scan the engine control module for other errors
6. If necessary, replace the injector or other faulty components

Related codes

Error P021C by Vehicle Brand