VW Code 19421
19421 Description And Summary : |
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This code were stamped on VW Engine case please check dtc memory of transmission ecu it can suddenly lead to a significantly more linear oxygen sensor exhaust bank 4 / reference voltage, short to ground or valve for engine storage (n144/145), interruption / short-circuit after mass will delay your vw fault. |
19421 Possible Causes:
19421 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Exhaust Gas Recirculation Sensor B Circuit High
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 19421 Code
- Inspect all the connections intake manifold tuning valve (bank 1), stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns