VW Code 16604

16604 Description And Summary :
Staring in engine fuel fired heater, disabled it can suddenly lead to a significantly more oxygen (lambda) sensor b1 s1, heater return coupling and wait then system too rich at higher load, bank 2 is the final reason of the code.

16604 Possible Causes:

16604 vw fault code may be caused by one or more of the following:

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

What To Check After Fixing 16604 Code

Inspect all the connections system too lean at higher load, bank 1
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

16604 Fault Code For Volkswagen Vehicles

The fault code 16604 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 16604 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