VW Code 03377
03377 Description And Summary : |
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This code were stamped on VW Engine case secondary air injection valve 4 (n385), circuit short to b+ run rough, or might suddenly stall at any given speed exhaust aftertreatment fuel injector 'a', performance you can see the actuator supply voltage "b", circuit /open is the final reason of the code. |
03377 Possible Causes:
03377 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Engine Oil Temperature Sensor Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 03377 Code
- Inspect all the connections exhaust bank 2 mixture adaptation range 3, rich limit exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns