Cleaned both throttle bodies and put in new O-rings. Car started up great and seems to run as smooth as ever. Problem: hooked up the OBD II reader and it’s indicating 3 codes which never have appeared prior: P2111, P1579 and P2106.

Is there a procedure for the respective throttle bodies - R and L - to be reset? Did not see one indicated, but perhaps I am missing something? Have been looking around the forums and thus far, no definitive answer. Kindly advise.

Thanks so much.

You typically need a professional-grade diagnostic tool (such as those made by Durametric, Porsche PIWIS, or Cobb Accessport) to perform a proper throttle body adaptation reset. These tools access the car's computer system and initiate the specific relearn cycle. Simply disconnecting the battery or performing generic OBD-II resets often does not clear the learned adaptations within the ECU memory effectively for this specific issue.

My advice is to use a compatible diagnostic tool to perform the official throttle body adaptation procedure for both the left and right sides. This should resolve the error codes and restore normal function. If you don't own such a tool, many independent Porsche specialists or well-equipped repair shops can do this quickly for you.

Hope this helps you resolve the issue!

Thank you, but this is a 2010 Aston Martin DBS and not a Porsche, so I am not clear if the suggested remedy would be the solution.

What do the codes mean? Did you inadvertently create an air leak? AFAIK there is no TB reset procedure. You can remove and replace them at will w/o the need for special procedures.

Maybe an electrical connector not fully seated?

I've had my throttle bodies off for cleaning on my gen 2 Vanquish and my previous DB9. Never any issues, no reset procedure.

No procedure is what I thought, but had not heard if that is indeed true - so thank you! Possible that one or both of the electrical connectors are not seated correctly - this car only has 14K on it and when I disassembled the throttle bodies, appeared that they had never been off. Also possible that one or both of the new o-rings are not seated correctly. Will recheck everything and report back.

Thanks so much.

Great news! Unplugged and re-plugged both electric connectors, then cleared the codes, started and then did a drive. Then, did a follow-up scan and viola, no error codes! Not sure what threw them prior, but all healed now, which is what counts! Thanks so much for everyone’s help!