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View Full Version : Power FC difference between L-jetro & D-jetro base maps?


Sleeper122
05-31-2015, 07:44 PM
Is there any difference between the base maps for l-jetro and d-jetro?

I have a link to the old site with base maps, but they are all running l-jetro with MAF.

Just didn't know if the maps would be any different for a non MAF setup?

Appreciate any insight.

Kingtal0n
06-02-2015, 02:05 PM
maf is
maf voltage -> fuel correlation value -> injector on-time

map is
map voltage -> fuel table value * fuel correlation value -> injector on-time

So as you can see in the map based power FC you have a fuel table value for injector ms of on time that works with a fuel correlation multiplier table, whereas with maf sensor you only have a fuel correlation value to convert sensor voltage into injector ontime. maf correlation values are somewhat useful when comparing similar engines with an identical maf.

maf is faster and easier to tune because setting up the fuel table values for each individual cell is time consuming and requires experience or an appropriate algorithmic solution.

Sleeper122
06-12-2015, 03:30 PM
Thank you for the detailed response. This explanation helps.