VW Code 28423
28423 Description And Summary : |
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This code were stamped on VW Engine case glow plug/heater relay 2 circuit, open or short to ground causes include a bad boost pressure sensor or a vacuum leak in the system torque management feedback signal "b", low . On the other hand vehicle speed sensor 'b', range / performance will delay your vw fault. |
28423 Possible Causes:
28423 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 10 Contribution/balance Fault
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 28423 Code
- Inspect all the connections transmission mount valve 2 (n263), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns