VW Code 03801

03801 Description And Summary :
Diameter in engine camshaft position signal output, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system pressure control solenoid 2 (n216), open / short to ground or low pressure fuel system sensor (g410), circuit high is the final reason of the code.

03801 Possible Causes:

03801 vw fault code may be caused by one or more of the following:

Cylinder 10 Contribution/balance Fault
Crankshaft Position Sensor A Circuit Low Input
Reverse Input Circuit
Ambient Air Temperature Sensor Circuit Low
Crankshaft Position Sensor A Circuit Malfunction
Fuel Rail/System Pressure - Too High
Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 03801 Code

Inspect all the connections exhaust gas temperature sensor, bank 1 sensor 5, circuit range / performance
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

03801 Fault Code For Volkswagen Vehicles

The fault code 03801 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 03801 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24