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Emissions trouble with P0491 showing up.

The Renegade777

New member
2011 GTI (CBFA)

It's time for me to finally smog my GTI and so far it hasn't been fun. I reinstalled my factory intake and the SAI pump a week or so ago. I cleared my codes from when I had my SAI removed and everything seemed fine. Wife took the car but it failed a test. It looks like an O2 sensor isn't reporting to the ECU properly. I have use Torque to pull live data from bank 2 and 3 but nothing from bank 1, so to me it looks like sensor 1 is bad. But the other readings from the emissions readiness test show EVAP and SAI as well. So I'm just not quite sure what the problem exactly is. Money is very tight so I can't really just go replacing everything. So anyone that has any ideas for what to check and/or test or knows exactly what the problem is, your help would be greatly appreciated. I have also done a lot of searching for my exact situation but came up with nothing. I also took screen shots of everything from Torque.







 
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