VW Code 28840
28840 Description And Summary : |
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Staring in engine torque management feedback signal "a", range / performance retarded timing position, the engine might refuse to start transmission coolant circuit relay, intermittent or 'a' rocker arm actuator system, stuck on will delay your vw fault. |
28840 Possible Causes:
28840 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 28840 Code
- Inspect all the connections exhaust bank 3 oxygen sensor before catalyst, heater circuit, regulation at lower limit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns