Mark P

My buddy bought an Allroad 2.7T, had it for a while, drove down to NJ to get his timing belt / plugs / oil changed and a few days later has a CEL, some stumbling at shifts (auto), and Autozone codes PO158 and PO159. I don't trust those fully and would like to get a VAGCOM on the car and also see if anything else has shown up.

If it was "too rich" in both banks, I would think there's a leak between the ICs and throttle body from poor connections or torn TBB during Timing Belt service. However, it's only on one bank and the other code seems to be from an O2 issue on the same O2. So maybe just that O2 has failed coincidentally in the days after TB change, but I think it's more likely it's somehow caused from TB service. I'm trying to help remotely, and would really like to see if someone could check his car out with VAGCOM so I can trust the codes reported.

Thanks in advance!