swap air mass for map sensor

marcone · Post by **marcone** » Thu Jan 24, 2013 1:07 pm

Hi Has anybody tried removing air flow meter and adding map sensor for either boosted or removing for throttle bodies.

aboutton · Post by **aboutton** » Tue Jan 29, 2013 8:38 pm

I did not try it yet but it is 100% plausable, the diference is that map sensor output has a linear shape but air mass is curved so 1st of all you need to tune the airflow table

marcone · Post by **marcone** » Sat Feb 02, 2013 12:10 pm

Cheers I will try let you know how I get on and if need help may ask for a little assistance

DmcL · Post by **DmcL** » Thu Feb 21, 2013 8:21 am

may not be straightforward and depending on what maps you know in the ECU your working with it may not be possible.

i was able to setup and tune a MAF conversion for my old E30 325i (had a vane type airflow meter originally) but after a few different MAF's i decided to try a MAP sensor conversion and was only able to get the car idling and free revving, however, the engne sounded off and had a slight miss every so many revolutions which i could never iron out either by tuning or by adding a small smoothing circuit to the MAP sensors output. it may well be possible but could be fairly difficult.

my line of thinking is that it would be easier to tweak the MAF setup to work with turbo/itb's or whatever your building. if you do try a MAP conversion and have any amount of success with it PM me as id be interested in hearing what car/engine/ecu and your tuning/setup.