Hi, Folks, I need some help here.

I am planning to install F-con S on my G35x AWD to see if it works
& let it run for a few weeks before installing S/C.
My F-con S is piggyback pre-programmed to HKS S/C (Rated 80HP only),
not turnable.

My installer think it'll run rich, may foul up the sparks, but pose no danger
to my car.

So my questions is,

1, Should I install the two external injectors with Fcon before adding S/C?
I am thinking without the two injectors, it'll be runing less rich, right?
How could I tell if the Piggyback is working?

2, Would install Plenum Spacer (which make my car run lean, as I already have a Stillen Cat back ) with the F-con S make it less rich?

3, Would 1 step colder plugs reduce fouling? or make it worse?


Thanks

 

Don't you need special software to tune the IS?

 

Not sure how how that unit works but if it relies on boost, with zero boost I'd imagine the sensors would keep it in check...

not certain it's worth experimenting with...