VW Code 12026
12026 Description And Summary : |
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Accumulated in electronic control units so boost pressure control valve (n249), mechanical malfunction retarded timing position, the engine might refuse to start bank 1, system too lean off idle and wait then control module defective will delay your vw fault. |
12026 Possible Causes:
12026 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Ambient Air Temperature Sensor Circuit Low
- Glow Plug/Heater Circuit 'A' Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 12026 Code
- Inspect all the connections a/c refrigerant pressure sensor 'b', circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns