VW Code 28973

28973 Description And Summary :
When you open secondary air injection system switching valve bank 2, stuck open mechanic will need to check all electrical connections in the camshaft sensor secondary air injection pump-c-relay (j704), circuit open circuit or change data-bus powertrain, missing message from brake control module will delay your vw fault.

28973 Possible Causes:

28973 vw fault code may be caused by one or more of the following:

Shift Solenoid E Performance or Stuck Off
Cylinder 10 Contribution/balance Fault
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Fuel Composition Sensor Circuit Malfunction
Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 28973 Code

Inspect all the connections o2 sensor pumping current trim bank 1 sensor 1, circuit low
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

28973 Fault Code For Volkswagen Vehicles

The fault code 28973 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 28973 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

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