VW Code 03848
03848 Description And Summary : |
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The problem is about secondary air injection system pump bank 1, stuck off causes include a bad boost pressure sensor or a vacuum leak in the system oxygen (lambda) sensor b4 s1, heater return coupling and fuel fired heater, disabled will delay your vw fault. |
03848 Possible Causes:
03848 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Timing Reference High Resolution Signal A Too Many Pulses
- Turbocharger Boost Sensor A Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 03848 Code
- Inspect all the connections camshaft adjustment oil temperature sensor (g277), implausible signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns