MAP system? AFM system?

[Raymond_Hu]

Hi guys, as I know many of car is running AFM. Is there any other car running MAP system?
what is the different between this 2 system in case of efficiency and advantages?
What will be the different if same Hi-Flow air filter use on MAP and AFM?

 

[Raymond_Hu]

any sifu or expect can explain ?

 

[roza]

afm-air flow meter/svt 20v....idling problem/rpm fluctuation
map-manifold absolute pressure/16v/20v bt....converts an amount of pressure/vacuum into an electrical signal and its sensor checks for variations in intake-manifold pressure....no
problem at all

 

[BLaCkHoWLiNG]

AFM has slight restriction due to the fact that the flap is 'there' in d middle of the suction of air... but if i'm not mistaken, AFM has a greater accuracy interms of sensing airflow... hmm..

 

[Raymond_Hu]

if AFM is greater accuracy, then why Toyota want to come out MAP at later better version? don't make any sense right?

 

[wfhan]

maybe easier production?

 

[azuaneman]

maybe MAP cheaper & easier than AFM i think :D

 

[MetaruBZG]

yeah i think MAP is cheaper cos the sensor seems smaller and less complicated :D, btw how to change AFM to MAP?

 

[Raymond_Hu]

Really MAP is cheaper and less complicated? then all the new car should be using it already right? what is currently all the fuel injection car using? AFM ? MAP ?

I think may be it is expensive, then only less car using right? anybody know?