4AGE AFM or MAP

[RO11LR]

Hi all
i'm trying to sort out the electrics out on my 4AGE and have come accross a couple of speed bumps , ive got 2 x looms , 1 x ecu . The ecu and 1 of the looms is for AFM and the other loom looks a little different and i think its for a MAP system

MAP Vs AFM - is one better ( more reliable ) than the other ?

do the ECU's do both MAP and AFM or are they specific to each ?

This is going into my KE25 and looking at the engine it has a vacuum fitting in the plenum with three nipples coming out of it for the MAP sensor .

All help appreciated thanks , Lindsay

[jonra23]

MAPS are better in my opinion, no restriction in inlet tract, easier to fit up, swap for different ranges, make custom inlets, etc.

regards
jon

[adamaw11]

If its an afm ECU it will only run with an afm

Many people prefer a map sensor due to the apparent airflow restriction from an afm (which may actually be insignificant)and the fact that a map sensor can also allow for a less cluttered engine bay or more options with fitment of air filters or cold air induction setups

Some people beleive the afm measures the airlow more accurately than a map sensor, and can deal with upgraded cams a little easier.

[RO11LR]

Thanks guys , much appreciated . + rep for you both