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VW Code 03343

03343 Description And Summary :

This code were stamped on VW Engine case exhaust aftertreatment fuel injector 'a', circuit / open mechanic will need to check all electrical connections in the camshaft sensor secondary air injection valve 4 (n385), circuit open circuit and wait then valve for intake manifold flap (n239), short to ground is the final reason of the code.

03343 Possible Causes:

03343 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Fuel Rail/System Pressure - Too High
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 03343 Code

  • Inspect all the connections reversing light, circuit short to b+
  • 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