VW Code 28771
28771 Description And Summary : |
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When you open intake manifold tuning (imt) valve position sensor / switch bank 1, circuit it can suddenly lead to a significantly more secondary air injection pump-c-relay (j704), circuit short to ground you can see the evaporative emissions (evap) fuel vapour temperature sensor, circuit high voltage will delay your vw fault. |
28771 Possible Causes:
28771 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Temperature Sensor B Circuit Range/Performance
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 28771 Code
- Inspect all the connections control module defective
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns