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Title: msdk_w how does the ECU get this value? Post by: Milka on September 28, 2012, 05:40:53 AM So have been playing with which variables to log and just wanted to know if anyone knows how the ECU figures out msdk_w? cfg entry below:
msdk_w ; {MassAirFlowAtThrottlePlate} ; {Massenstrom über Drosselklappe (word)} I am pretty sure that mshfm_w is just an addition of the 2 MAFAirFlow meters again as per the entry below: mshfm_w ; {MassAirFlow} ; {Massenstrom HFM 16-Bit Größe} Does it just estimate msdk_w based on boost pressure and throttle plate angle or something? Title: Re: msdk_w how does the ECU get this value? Post by: thom337 on September 28, 2012, 06:51:57 AM It uses the throttle discharge curve, a flow characterstic map, and a pressure and temperature compensation. In the case of most setups, its using the MAP pressure pre-TB.
Title: Re: msdk_w how does the ECU get this value? Post by: phila_dot on September 28, 2012, 07:21:29 AM Look at BGMSZS in the FR.
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