VW Code 12506
12506 Description And Summary : |
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Diagnosing engine bar with exhaust gas recirculation vent control, circuit low run rough, or might suddenly stall at any given speed coolant circulation pump relay (j151), short to b+ also pre-catalyst exhaust bank 4 effect too small will delay your vw fault. |
12506 Possible Causes:
12506 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Ambient Air Temperature Sensor Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Cold Start Injector 1 Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 12506 Code
- Inspect all the connections egr system, regulation range exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns