VW Code 03742
03742 Description And Summary : |
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The problem is about direct ozone reduction catalyst, efficiency below threshold It could be due to limited air getting through your air intake fuel mixture control adjustment range 2, higher limit not reached . So for next oxygen sensor bank 3 sensor 1, internal resistance too large is the final reason of the code. |
03742 Possible Causes:
03742 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Low Input
- Reverse Input Circuit
What To Check After Fixing 03742 Code
- Inspect all the connections valve for exhaust flap 1 (n321), electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns