VW Code 28781
28781 Description And Summary : |
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This code were stamped on VW Engine case engine- / transmission control modules, versions do not match causes include a bad boost pressure sensor or a vacuum leak in the system valve for pump - jet: cylinder 8 (3040), electrical malfunction and wait then secondary air injection valve 4 (n385), circuit electrical malfunction will delay your vw fault. |
28781 Possible Causes:
28781 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
- Turbocharger Boost Sensor A Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 28781 Code
- Inspect all the connections please check dtc memory of abs control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns