Deciphering Fault Codes From Torque Pro App

Kilbenator

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Hi all,

I had EPC and Emissions warning lights appear on the dash (2006 RS4). Tick over has become rough and it turns over for a while before starting up.

Sooo, I bought the Torque Pro app with a bluetooth connection and ran a fault check. This is what it gave me:

Current Fault Log ------------------
P0458: Unknown code - More information may be available on the web
P2009: Intake Manf Runner Control Circuit Low bank1 a)
P2257: Secondary Air Injection System Control A Circuit Low
P0414: Secondary Air Injection System Switching Valve "A" Circuit Shorted
P2295: Fuel Pressure Regulator 2 Control Circuit Low
P0031: HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0037: HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0051: HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
P0057: HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P129C: Unknown code - More information may be available on the web

I'm thinking these all sound related and (hoping) it's all down to a faulty connection/sensor somewhere. Can anyone help point me in the right direction to find the most likely suspect here? Would love to fix this myself if possible...

Thanks!
 

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