VW Code 04990
04990 Description And Summary : |
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When you open exhaust bank 4, sensor 2, tension too small to change the oil filter and use the recommended engine oil to avoid any problems in the future so fuel pump "b" control, circuit low and wait then valve for exhaust flap 1 (n321), short to ground is the final reason of the code. |
04990 Possible Causes:
04990 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 04990 Code
- Inspect all the connections bank 1; system too lean at idle
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns