Apexi Power FC Help *SR20DET*

[angledriven]

Im running a retop sr20det FMIC, walbro pump, 550 injectors, BOV, T28, 3" straight pipe, greddy Pro fec EBC ON a JIm Wolf ECU. I just purchased a second hand Apexi Power FC (no manual)and ordered a new IAT sensor that should arrive today. I want to swap it out this weekend just want more Information before hand.

After reading through a few threads I see that i can use my existing harness, but i have to wire in the IAT sensor into the ECU wiring harness.
Is the IAT sensor the only sensor that is to be spliced into my harnes to get it to function properly. O2? TPS? Knock sensor?.

[ultimateirving]

If I'm not mistaken it uses the sr harness? which in turn would use the same wiring. And you would have to figure out where the iat sensor splices in.

[steve shadows]

So you're sure this is the d-jetro unit?

You'll need the MAP sensor as well if it's d-jetro.

L-jetro is for MAF sensor setups.

Thanks

[Kingtal0n]

I want to point out that the IAT is only really useful under rare circumstances. The default setting in the PFC is something like 5-7% of fuel REMOVED when the IAT's are very hot. Their reasoning is hotter air is less dense, therefore, remove fuel.

I feel that this is not entirely necessary, seeing how hotter air often means you are tapping the compressor, and the last thing I would want to do when squeezing every ounce of power out of any random setup is remove 5-7% of my fuel.

most setups work fine without it... but I live in Florida where the temperatures never really drop. If you live in a place where temperatures fluctuate massively, then yes you will probably want the IAT for your map based setup because on cold days, you will need to add some serious fuel for a serious temperature drop. Here the temps are fairly stable.