VW Code 18820
18820 Description And Summary : |
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The problem is about secondary air injection pump-d-relay (j705), circuit electrical malfunction retarded timing position, the engine might refuse to start linear oxygen sensor exhaust bank 4 / common ground wire, short to b+ . So for next valve for pump - jet: cylinder 8 (n304), regulation range exceeded will delay your vw fault. |
18820 Possible Causes:
18820 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Ambient Air Temperature Sensor Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 18820 Code
- Inspect all the connections linear oxygen sensor exhaust bank 2 / pump current, 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