VW Code 16638

16638 Description And Summary :
This code were stamped on VW Engine case idle speed control throttle position, electrical malfunction mechanic will need to check all electrical connections in the camshaft sensor reductant temperature sensor, circuit range / performance or change injector cylinder 14 (n391), circuit high will delay your vw fault.

16638 Possible Causes:

16638 vw fault code may be caused by one or more of the following:

Cylinder 1 Injector Circuit Low
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
Shift Solenoid E Performance or Stuck Off
Cylinder 4 Contribution/Balance Fault
Timing Reference High Resolution Signal A Too Many Pulses
Engine Shutoff Solenoid Malfunction
Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 16638 Code

Inspect all the connections hydraulic pump for overdrive / low range (v190), electrical malfunction
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

16638 Fault Code For Volkswagen Vehicles

The fault code 16638 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 16638 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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