VW Code 03049
03049 Description And Summary : |
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Diagnosing engine bar with egr system, regulation range exceeded to change the oil filter and use the recommended engine oil to avoid any problems in the future so data bus powertrain, no communication or exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration is the final reason of the code. |
03049 Possible Causes:
03049 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Low Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 03049 Code
- Inspect all the connections glow plug control module 2 (j703) to pcm communication circuit, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns