VW Code 03437
03437 Description And Summary : |
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The instrument cluster alerts the driver to the fault oxygen (lambda) sensor b1 s1, heater return coupling It could be due to limited air getting through your air intake accelerator position sensor 1/2 (g79) + (g185), implausible signal or fuel injection valve 4 (n369), short to ground is the final reason of the code. |
03437 Possible Causes:
03437 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail/System Pressure - Too High
- Cylinder 1 Injector Circuit Low
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 03437 Code
- Inspect all the connections secondary air injection valve 4 (n385), circuit 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