VW Code 037
037 Description And Summary : |
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Diagnosing engine bar with nox sensor bank 1, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system intake manifold runner position sensor / switch, circuit low bank 1 also valve for fuel bypass (n312), interruption/short-circuit after mass will delay your vw fault. |
037 Possible Causes:
037 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 037 Code
- Inspect all the connections turbocharger speed sensor, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns