Quote Originally Posted by rsicard View Post
Tuning 16197427 PCM with TunerPro and APU1. In the selections on the left hand side, what has to be changed to keep the PCM in OPEN LOOP? Please advise. Thanks.
Why would you want to do that? :) There should be a "minimal temperature for closed loop" setting. Set the temperature to max and you'll stay in open loop.