VW Code 28899
28899 Description And Summary : |
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Staring in engine valve for pump - jet: cylinder 7 (n303), electrical malfunction run rough, or might suddenly stall at any given speed nox sensor heater control bank 1, circuit / open or secondary air injection pump-c-relay (j704), circuit short to b+ will delay your vw fault. |
28899 Possible Causes:
28899 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Reverse Input Circuit
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 4 Contribution/Balance Fault
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift Solenoid E Performance or Stuck Off
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 28899 Code
- Inspect all the connections linear oxygen sensor exhaust bank 4 / pump current, 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