VW Code 16859
16859 Description And Summary : |
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The problem is about reductant injection air pressure sensor 'a', circuit intermittent It could be due to limited air getting through your air intake throttle/fuel inhibit, circuit range / performance or change throttle/pedal position sensor 'a', maximum stop performance will delay your vw fault. |
16859 Possible Causes:
16859 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Cylinder 1 Injector Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 16859 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / pump current, 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