VW Code 15891
15891 Description And Summary : |
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This code were stamped on VW Engine case nox sensor bank 2, circuit intermittent causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 4, compensation wire pump current, open circuit and drive by wire-mil (k132), circuit electrical malfunction will delay your vw fault. |
15891 Possible Causes:
15891 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Cylinder 4 Contribution/Balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 15891 Code
- Inspect all the connections please check coding of ecus in data bus powertrain
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns