Quote:
Originally Posted by Toneaero
Anyone know where the vacuum pump is located for the exhaust flap in the OEM exhaust? When I hit the "M" button, the valve normally opens but I believe the pump needs to be replaced as it no longer opens on cold starts, WOT, and when I activate M mode.
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I had this problem. It was as simple as lubing up the actuator. Get under there and see the flap actuator from the outside of the exhaust, see if it is tough to move. Add WD-40, DONE!