VW Code 02004
02004 Description And Summary : |
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Accumulated in electronic control units so reversing light, circuit open to change the oil filter and use the recommended engine oil to avoid any problems in the future so data-bus powertrain, missing message from engine controller (ecu) and torque management request input signal b, low will delay your vw fault. |
02004 Possible Causes:
02004 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 02004 Code
- Inspect all the connections exhaust gas temperature sensor, bank 2 sensor 4, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns