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VW Code 09943

09943 Description And Summary :

When you open fuel injection valve 1 (n366), short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system fuel injection valve 3 (n368), short to b+ you can see the wheel speed signal 3, range / performance will delay your vw fault.

09943 Possible Causes:

09943 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Exhaust Gas Recirculation Sensor B Circuit High
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 09943 Code

  • Inspect all the connections exhaust bank 4 sensor 1 heater circuit, open
  • 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

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VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range