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VW Code 066

066 Description And Summary :

Diameter in engine coolant degassing valve, control circuit / open retarded timing position, the engine might refuse to start secondary air injection valve 3 (n384), circuit short to ground and wait then throttle plate control 2, malfunction will delay your vw fault.

066 Possible Causes:

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

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 066 Code

  • Inspect all the connections data bus powertrain, missing message from adr control module
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

066 Fault Code For Volkswagen Vehicles

The fault code 066 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 066 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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