My A4 has had multiple ongoing problems. I believe my turbo may be malfunctioning or I have a major valve/vacuum leak- I'm not sure. Here are the codes:

P0507-Idle air control system RPM higher than expected
P0722-Output speed sensor circuit no signal
P0171-system too lean-bank 1

ANYONE, PLEASE HELP ME!!!!!
-xoxo

 

I'd recommend to bring it to one of your local shops that work on audis and get it checked. I'm pretty sure u gotta a lose seal on ur turbo.

 

I plan on it this week. Its been like this for quite some time though. And a loose seal? Are you meaning on a cylinder? Sorry, I don't know all the specifics.
Also, does it play into the problems that my TCM spontaneously flashes and will switch into super and back into drive? It is so frustrating and I know it wastes gas!

 

I would have the intake smoke checked. The high idle & lean codes are probably tied together. The transmission code however could be a faulty sensor.

 

I went to the local Firestone just to get a routine diagnostic done and it came back with nearly 10 codes. Mostly cylinder misfires, evap small leak, high idle, lean bank, and intake air system leak. They cleared them out, because they believed they were codes from previous work done months ago. It came back with TWO codes:
011119- Gear recognition signal rec. dealer
18032- Malf indicator lamp request

The gear recognition makes sense because of my TCM flashing randomly and spontaneously switching from drive to Super 1-7gears..
We talked about how odd it was that the latter code was basically requesting that the check engine light be on when it has been on for months…
any advice?!