VW Code 12790
12790 Description And Summary : |
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The instrument cluster alerts the driver to the fault a/c refrigerant pressure sensor 'b', circuit causes include a bad boost pressure sensor or a vacuum leak in the system fuel pump "b", low flow / performance you can see the pre-catalyst exhaust bank 3 effect too small is the final reason of the code. |
12790 Possible Causes:
12790 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 12790 Code
- Inspect all the connections engine temperature too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns