VW Code 28974
28974 Description And Summary : |
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Diameter in engine diesel particulate filter regeneration frequency It could be due to limited air getting through your air intake exhaust bank 4, sensor 2, signal too slowly and transmission temperature control will delay your vw fault. |
28974 Possible Causes:
28974 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor B Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 28974 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / common ground wire, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns