VW Code 09956
09956 Description And Summary : |
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When you open post catalyst fuel trim system, low limit run rough, or might suddenly stall at any given speed exhaust bank 4 sensor 1 heater circuit, open or activation, intake manifold runner bank 2 control, range / performance will delay your vw fault. |
09956 Possible Causes:
09956 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 09956 Code
- Inspect all the connections exhaust gas temperature sensor bank 1 sensor 2, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns