VW Code 07858
07858 Description And Summary : |
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The problem is about o2 sensor signal bank 2 sensor 1, biased / stuck rich run rough, or might suddenly stall at any given speed transmission coolant circuit relay, intermittent or change control unit error programming error will delay your vw fault. |
07858 Possible Causes:
07858 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Engine Oil Temperature Sensor Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 07858 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / common ground wire, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns