VW Code 28725
28725 Description And Summary : |
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This code were stamped on VW Engine case linear oxygen sensor exhaust bank 4 / reference voltage, open circuit the system depends on oil pressure to switch between cam profiles secondary air injection system air flow/pressure sensor bank 1, circuit range / performance and automatic glow time control module 2 (j609), circuit electrical malfunction will delay your vw fault. |
28725 Possible Causes:
28725 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 28725 Code
- Inspect all the connections please check dtc memory of all wheel drive ecu
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns