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Old 07-27-2013, 11:10 AM   #6
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Join Date: Nov 2011
Location: British Columbia, Canada eh
Posts: 1,456
My Ride: Turbo M3 7168 27PSI
HPF stage 2 meth problem

Originally Posted by bluba View Post
New pump, new Solenoid and sensor is about a year old. On just the pump/meth setting, the car starts to Flutter and loses power on midrange and above. The boost gauge stays at 13 so I don't have a leak or the sensor going bad. The car doesn't seem like it's missing! On pump mode and race mode only( no meth) car runs fine. On race/meth mode, I think Everything is working fine but hard to tell.... I might feel some fluttering on the very top RPM range! Also if the car is cold like it sat overnight, I can get 3 to 5 pulls with the meth before car starts acting up... Once the car is completely warmed up I seem to have the problem with the pump/meth setting, Any ideas
Sounds like knock and the Aem is pulling timing to compensate... Do u have ur Aem unlocked ? Best way to know is pull the logs... If u need it unlocked ask John Reed for help. johnreedracing@gmail.com ... U dont want to mess with this if meth is not working properly u could do some damage

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