VW Code 12859
12859 Description And Summary : |
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Diameter in engine fuel rail sensor (g401), short to ground mechanic will need to check all electrical connections in the camshaft sensor cylinder 5 injector, data incompatible and wait then exhaust gas temperature sensor 2 bank 2 (g449), range / performance will delay your vw fault. |
12859 Possible Causes:
12859 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 12859 Code
- Inspect all the connections planetary overdrive / low range, mechanical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns