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createvolumetricefficiencymap [2008/01/23 09:02]
76.100.119.159 created
createvolumetricefficiencymap [2024/03/15 11:16] (current)
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-====== ​Overview ​======+====== ​Create Volumetric Efficiency Map ======
  
 The VE table is **only** used while the ECU is operating in Fake MAF mode.  When Fake MAF is selected, the signal coming from the real MAF is ignored above the entered switch over point. ​ For that point on, a MAF signal is simulated by extrapolating from the conditions observed at the switch over point. The VE table is **only** used while the ECU is operating in Fake MAF mode.  When Fake MAF is selected, the signal coming from the real MAF is ignored above the entered switch over point. ​ For that point on, a MAF signal is simulated by extrapolating from the conditions observed at the switch over point.
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 With boost lowered appropriately,​ deselect Fake MAF and set the clamp point to something around where full boost is achieved. ​ Again, datalog MAFRaw to determine this value. ​ Then log both MAFComp and MAFSD. ​ MAFComp is the MAF sensor reading after compensations have been applied to it from the MAF Compensation table. ​ MAFSD is MAFComp after VE adjustments have been applied (as well as factoring in pressure if you have Use MAP selected). ​ Both of these are calculated even when they’re not being used. Adjust the VE table until MAFSD replicates MAFComp. ​ This process will effectively map out the volumetric efficiency of your setup. With boost lowered appropriately,​ deselect Fake MAF and set the clamp point to something around where full boost is achieved. ​ Again, datalog MAFRaw to determine this value. ​ Then log both MAFComp and MAFSD. ​ MAFComp is the MAF sensor reading after compensations have been applied to it from the MAF Compensation table. ​ MAFSD is MAFComp after VE adjustments have been applied (as well as factoring in pressure if you have Use MAP selected). ​ Both of these are calculated even when they’re not being used. Adjust the VE table until MAFSD replicates MAFComp. ​ This process will effectively map out the volumetric efficiency of your setup.
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createvolumetricefficiencymap.1201096934.txt.gz · Last modified: 2008/01/23 09:02 by 76.100.119.159