VW Code 16504
16504 Description And Summary : |
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The problem is about exhaust bank 4, sensor 2, tension too small causes include a bad boost pressure sensor or a vacuum leak in the system actuator supply voltage "b", circuit /open also evaporative emission system switching valve control, circuit low will delay your vw fault. |
16504 Possible Causes:
16504 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 16504 Code
- Inspect all the connections intake air heater "a", circuit open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns