Thank you guys so much!! I will test the brake pedal today and get back to the chat with results. Now for the live results, I have a OBD two cheap reader. What live readings will I be looking at specifically and what specs for them?
Thanks again guys!
Just see if the fuel trims change when depressing the brake pedal while in gear at idle vs not depressing the brake pedal in gear at idle…
You can also clamp off the vacuum hose for the booster and see if hitting the brake still makes it vibrate and or if it still changes the fuel trims…
And it is called Live Data and you looking for fuel trim readings, and your “code reader” may not support Live Data depending…
So update, I just ran some tests. The noise is starting to be constant all the time, but louder when in gear and even louder with the break on. RPM in park was about 75, RPM in gear with parking brake on was 650, RPM in gear with brake depressed was 600. The long-term fuel trim did not change through any evolution. The short term fuel trim changed on every evolution. In park, sitting there it was a range of -0.8 to 0.8 then if I were to put into gear with parking brake or push the brake as separate evolutions, it would fluctuate to 1.6-2 then return back to zero after a few seconds. Also looking in the engine bay, when in gear with parking brake depressed, the engine would be shaking more than in neutral or park. Let me know what you guys think from these results.