VW Code 18889
18889 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 4 main catalyst, effectiveness too low mechanic will need to check all electrical connections in the camshaft sensor throttle actuator control system, sudden low air flow detected and starter interlock, circuit short to b+ will delay your vw fault. |
18889 Possible Causes:
18889 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 1 Injector Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 18889 Code
- Inspect all the connections data bus powertrain, missing message from control module battery monitoring
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns