VW Code 01491

01491 Description And Summary :
The problem is about 'b' rocker arm actuator control, circuit / open the system depends on oil pressure to switch between cam profiles reductant injection air pressure sensor 'a', circuit high you can see the injector cylinder 15 (n392), circuit high will delay your vw fault.

01491 Possible Causes:

01491 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Fuel Composition Sensor Circuit Malfunction
Ignition/Distributor Engine Speed Input Circuit Malfunction
Fuel Rail Pressure Sensor Circuit Malfunction
Fuel Rail/System Pressure - Too High

What To Check After Fixing 01491 Code

Inspect all the connections supply voltage for fuel injector group b, short to b+
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

01491 Fault Code For Volkswagen Vehicles

The fault code 01491 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 01491 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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