IS200T Transmission
Rookie
Joined: Jul 2013
Posts: 72
Likes: 17
From: CA
Sorry guys it was hard to get a good video while I was driving but you can still kind of see the needle bouncing. I have my foot on the gas slightly to keep speed and it does this. The boost is in full vacuum, so I know it is not the vacuum regulator valve. And it does the with both the Stock and the aftermarket intake so that rules the intake out as well. Could it possibly be the calibration of the pedal?
I get this on my car also, only in sport mode when I'm barely touching the pedal just to maintain speed. I suspect that it's most likely the accelerator pedal sensor being finicky and oversensitive. When I had my Apexi Throttle controller installed (basically amplified stock signal), the jerking was at least 5x how it is in stock form. Does it go away when you press the pedal a bit harder?
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