XM15

I've been thinking about going supercharged sometime this summer. (Already have quite a few parts) My plan is to use the AEM fi/c for tuning. My question is: if the piggyback system is already installed, will there be an issue with the wiring setup when the supercharger goes in? In other words, will any wiring need to be moved around for a second time if I install the supercharger after the fi/c is put in?

If the answer is no, things will be greatly simplified. I'm hoping that once the piggyback is installed, it won't need to be touched again. Any input would be great.

scottyguy401

I'm curious also. I wanna be able to install it and have it on my car before I install the sc down the road.

glen229

iTrader: (4)

this is what im wiring in 2moro

be on the look out for my how to with pics

the only thing you will change is the tune, once its wired in its wired in

XM15

I'll be looking for that glen.

And good luck with the build.

HunterKiller89

iTrader: (1)

you can leave the FIC in place. Mine is currently in place in my car, tho its not doing anything in the way of tuning at the moment. FIC values are all set to 0 and i'm trifecta tuned.

Just FYI to you guys, unless AEM fixed it, do NOT intercept the MAF signal wire. The FIC was made to run on voltage based MAF cars and since ours is frequency based, it effectively unplugs the MAF from the PCM if you try and intercept this line. I know AEM was talking about releasing a new version of the FIC that can support frequency based MAF sensors, but I dont believe they have yet. The cobalt was listed on the list of supported cars on AEM's website despite the fact that the FIC could not support MAF tuning for our cars, so you'll need more confirmation than just seeing our car under that list

XM15

Thanks for the heads up.

How's that trifecta tune working with the blower? Have you dynoed yet and/or gotten some Air Fuel readings?

HunterKiller89

iTrader: (1)

AFR is usually in the 11's, but it depends on outside temp and humidity, as its completely MAF driven. no dyno or track times tho

XM15

We'll expect some #'s by the summer then.

cobaltls08

i know this thread is almost a month old but has anyone had anyluck with the aem fic? i was talking to jason hunt and a few other people, as were starting to turbo my car. and they were thinking i should go with the aem fic. and i just wanted to get some input from people who have experience with them on our cars......btw i have an 08 2.2l 5spd

glen229

iTrader: (4)

yeah its on my car now, just have a couple small things that aem is looking into

HunterKiller89

iTrader: (1)

get the more expensive one. i forget the names, but there are 2 versions of the FMIC, the original, and a new one that can tune our MAF as well...buy that one if you get it

glen229

iTrader: (4)

there is no reason to even tune the MAF on our cars... its alot of wiring and tuning headache that is not needed

its pre boost ... you do not need to do this

HunterKiller89

iTrader: (1)

the F/IC-8 (the one i was talking about) lets you tune MAF, recalibrate the speedometer for bigger wheels, has IAT2 logging, has a boost controller, and has a LOT more room for logging. If you use the F/IC-6, then you will have to wire it differently, as the recommended wiring for it will disconnect the MAF
Besides, its not pre-boost. Its pre-PE mode, and unless you disabled PE delay, you will be in boost for a couple seconds while still in closed loop...aka engine goes BOOM!

glen229

iTrader: (4)

the car is in a open loop so were not concerned with the pe delay

originaladrian

subd

HunterKiller89

iTrader: (1)

did you turn PE delay off? if not, then no..you will boost in closed loop for a short time. the F/IC does not have the ability to eliminate PE delay

glen229

iTrader: (4)

rear o2 is unplugged, so its forced into open loop

HunterKiller89

iTrader: (1)

so you're gonna drive around with the CEL then?

HunterKiller89

iTrader: (1)

so you're gonna drive around with the CEL then?
and im pretty sure its the front o2 sensor that is used in clsed loop. the rear o2 is only used to check for catalyst efficiency.

b_faulk75

Yea, this is an interesting subject. I am planning to use the f/ic-8 in my future setup. To me it seems very important to be able to tune the maf, especially if it's a blow thru setup.