logo

VW Code 03034

03034 Description And Summary :

Staring in engine ignition switch run/start position, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so nox trap, efficiency below threshold (bank 2) or change valve for pump - jet: cylinder 7 (n303), circuit low input is the final reason of the code.

03034 Possible Causes:

03034 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Injector Circuit Malfunction - Cylinders
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 03034 Code

  • Inspect all the connections o2 sensor exhaust sample error bank 2 sensor 1
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range