VW Code 04977

04977 Description And Summary :
Staring in engine valve for pump - jet: cylinder 8 (n304), regulation range exceeded causes include a bad boost pressure sensor or a vacuum leak in the system intake manifold runner bank 1, high temperature . So for next ignition coil cylinder 15, high circuit is the final reason of the code.

04977 Possible Causes:

04977 vw fault code may be caused by one or more of the following:

Turbocharger Boost Sensor A Circuit Low
Ambient Air Temperature Sensor Circuit Low
Engine Oil Temperature Sensor Malfunction
Injector Circuit Malfunction - Cylinders
O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 04977 Code

Inspect all the connections exhaust bank 3, probe 1 electrical error in the electric circuit
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

04977 Fault Code For Volkswagen Vehicles

The fault code 04977 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 04977 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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