Hi guys,
i need little help. Can anybody tell me what is "Speed density MAP Multiplication" in calculations in newer firmwares?
I cant modify this factor in VT and cant find any valuable informations about it.
This multiplication makes my idle unstable and floating at lambda 1.0, because it changes Injectors PW. All others corrections and VE values are stable. At idle (cca 800rpm) MAP readings very small floats, just 1-3kPa but this function multiplicate this MAP values and then calculation model change PW which means that lambda is floating, idle air valve is floating, etc....
When i make lambda table richer, and turn on WBO2 closed loop control, idle is stable, but engine runs lambda 0.85-0.9 on idle.
Can anybody please tell me how to fix this problem or where to disactivate this multiplication in VT?
Thank you very much
http://www.vems.hu/files/LanciaSlovakia/speed-density.jpg