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VW Code 14878

14878 Description And Summary :

Diameter in engine linear oxygen sensor exhaust bank 1, compensation wire pump current, open circuit causes include a bad boost pressure sensor or a vacuum leak in the system relays for coolant additive pump (j496), short to b+ and wait then immobilizer query not yet performed is the final reason of the code.

14878 Possible Causes:

14878 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 14878 Code

  • Inspect all the connections glow plug / heater indicator (k29), circuit open / short to ground
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

14878 Fault Code For Volkswagen Vehicles

The fault code 14878 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 14878 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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