I can't find here the answer.... on how to Install external switch to AEM EMS for different maps for different fuel???

 

if i'm not wrong, only motecm800 or so can do map switching..

not too sure whether aem can do it..

 

I saw it somewhere here last year but I couldn't find it

 

There is no swich for AEM. You may be able to play with the NOS maps and have them add or subtract fuel/timing. It's just easy to swich maps using a laptop.

 

Like Mike said you have to use the NOS map. Tune your base map to one setting then you have to wire a switch to activate the NOS map and tune that for your second setting. The switch then changes between base map and NOS map. Good luck.

 

To be on the safe side it's always better to use a laptop and confirm the map swtich. An external swtich can have malfunctions, goodluck .

 

 

You could always set up an LED to light up when using the switch. It's just an idea.

 

is possible to install a switch for low and high boost, when its switch to high boost map the check engine light turn on to confirm the switch over. i just wish i knew how to install it.

 

^ You don't need to switch maps... Use a boost controller... You can use the same map for 93/c16 if you need to. Is it really that much of a problem to switch the map with a laptop?

 

There really is no need for switching maps since you're at different load cells for higher boost so your timing and fueling will already be setup. If you have a high/low boost switch setup you're essientally having 2 maps cause you really could have the high boost setting tuned for c16 or something if you wanted.

There's prob a way to do it with ign/fuel dif map, similar to how some of you guys are setting up the meth.

I know of some guys using the flex fuel sensor (0-5v) as a fuel trim for gas/e85 setups. You could configure some alt settings to work with that as well.