Thread: mpe exhaust mod
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      02-29-2020, 10:59 AM   #6
ngl
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Drives: BMW 228i
Join Date: Aug 2017
Location: Romania

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Stock cars should not open valve on engine idle, regardless of mode ( normal / sport / sport+ ). If it does you would hear it doing it, it's loud enough to hear it with the door open. Valve opens only on engine load, there is a map in the ECU telling it at what engine load / rpm it should open, so I can't see how pulling the fuse could work, unless you pull it while reving the engine hard.

If you use BM3, there is an menu to control valve, you can manually open / close it. The same is true if you use a data display like AKMotion DataDisplay.
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