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Message: <blockquote data-quote="CC&#039;S95GT" data-source="post: 1285604" data-attributes="member: 10547">that's correct.  It's the little "pill" you remove to set you base timing. It's located by the MAF sensor.With it installed, the computer is controling timing advance. The timing will jump all over between 20*-30* (The timing light is basically useless with the spout installed)With the spout out your timing is rock solid.My car runs and drives just fine with the spout out up to 3000rpm then it falls on it's face. Since the sniffer doesn't require the RPM's to be that hi the tech doesn't know any different.Pulling the spout for the sniff test IS NOT ALLOWED but if the tech doesn't know to look for it..... I suggest you stop just around the corner from the test facility, pull the spout, then drive it there to be tested. After the test is done, drive around the corner and put it back in. I doen't even shut off the car when I remove/install the spout.</blockquote>