Has anyone who has used a timing adjuster on a 2000 and up, have proof that it even did or does anything. By using a scan tool or diagnosics tool. I am using an autotap and I don't see anything. I have it set to 14 degrees. When the engine cools down I am gonna put it back to 10 degrees and see if the computers even noticing a timing change. I'm wondering if I just waisted a benjamin on this thing. Let me know. Maybe because my cars on 04. Oh, when will you see the 14 degrees. Is it at idle or before start up? When I start the car. It's says 19-20 on the autotap timing parameter. I dunno. but any info ASAP would be great. Thanks.