VW Code 28538
28538 Description And Summary : |
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The problem is about intake air heater "a", circuit range / performance It could be due to limited air getting through your air intake engine coolant temperature sensor 2 (g83), circuit low and hydraulic pressure sensor 1, range / performance will delay your vw fault. |
28538 Possible Causes:
28538 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 28538 Code
- Inspect all the connections valve for coolant system circuit, low / intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns