logo

VW Code 16674

16674 Description And Summary :

When you open oxygen (lambda) sensor b2 s2, signal shorted to heater circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration and wait then pressure control solenoid 5 (n233) open / short to ground is the final reason of the code.

16674 Possible Causes:

16674 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Cylinder 4 Contribution/Balance Fault
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 16674 Code

  • Inspect all the connections o2 sensor signals swapped, bank 1 sensor 3 - /bank 2 sensor 3
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range