 Speedtech bottom mount 6262 - 10 psi spring wastegate (crack pressure 12 psi) - V2.1 - Test pull 2 with 3 port mac plugged inDSC disabled, stock map sensor. 3 port mac plugged in. Stuttering is still there when flooring the accelerator pedal from 0 - 100. Just wanted to test. 2E81 - DME: Electrical coolant pump, speed deviation still there. Also got a 2E84 - BSD, message; Electric coolant pump: Missing. That 2E84 is new code, but the 2E81 has been there since I swapped in a brand new waterpump. Will try and change the waterpump again, now with a brand new OEM one from BMW. Last time I used this one: https://www.ecstuning.com/b-bavarian-autosport-parts/water-pump/11517632426~bav/ . Most likely been faulty from factory, has always thrown the 2E81 code. Has less than 100 miles on it.
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07/11/2025
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Testlog of the "stuttering" when leaning into the accelerator pedal from 0 - 100 Just a test of the stuttering when leaning into the pedal, just to see. It does stutter less when leaning into the pedal.
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07/08/2025
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Testlog of the "stuttering" when doing accelerator pedal 100% When flooring the pedal 0 - 100, it stutters 1-2 seconds and then takes of perfectly.
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07/08/2025
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Speedtech bottom mount 6262 - 10 psi spring wastegate (crack pressure 12 psi) - V2.1 - Test pull 1 DSC disabled, 3 port mac unplugged, stock map sensor. 10 psi wastegate spring - Spring crack pressure = 12 psi. Fresh valve cover gasket and swapped to plastic valve cover again. Reset lambda regulation in MHD app.
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07/08/2025
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Speedtech bottom mount 6262 - V2 - Test pull 1 DSC disabled, 3 port mac unplugged, stock map sensor. 10 psi wastegate spring - Spring crack pressure = 12 psi
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06/29/2025
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