red_ek_hatch

ok well i picked up a used APEXi VAFC today . i have a b16 sir II .
im running a ITR ecu . where can i get the directions on how to install the vafc to that ecu ? i know i can download the wiring diagram at: apexi-usa.com . but imnot sure at what diagram to look at . since im running the itr ecu with the b16 . can anyone point me to the right direction or explain how to wire the vafc to the itr ecu ? thanks in advance .

DohcSide

its bassically on the site just look at the diagram that looks like the plugs on the ecu i have a gsr ecu with a b16 sir2 engine also and its the ecu should be the same for both of is its pretty much straight foward if you read it through

red_ek_hatch

wich one do i look at ? the updated one or the regular manual diagram ? one is like the whole manual . and the other link is one that shows like 4 different ecu's . wich is it ?

EE_Chris

Which year ITR ECU are you running?

VAFC - Updated wiring diagrams

And if you read the updates 'notes', you'd see that things are the same except for the addition of one wire - the VTM wire.

DohcSide

look at the one that look s like your ecu i think its h 2 diagram thats what i used im not sure though but just look at your ecu plus and see which one looks liek in the diagram and go from tehre on teh on this sitehttp://www.apexi-usa.com/produ...c.pdf

red_ek_hatch

well i installed it . it was actually easy to install . it was just an issue on understanding the diagram . thanks every one for the help ..... now my problem is trying to adjust the VAFC . im running a b16 sir II engine my mods are : I/H/E , intake manifold , test pipe , fuel pressure regulator ( set at 38 psi ) im also running a ITR ecu . where should i set my settings at with my setup ? or should i just keep it at stock settings ? if so whats the stock settings ? i purchased this used so im not sure if its at stock settings .

red_ek_hatch

please help me get my VAFC back to stock settings . i purchased this used and im not sure if its at stock settings .

EE_Chris

Stock settings would just be zeroed out - so just reset the unit.

But to tune the VAFC with the particular mods you have would mean getting on a dyno and doing a full pulls. Or if you have a wideband O2, you could try and tune it yourself.

red_ek_hatch

what do i have to zero out in particular ? also whats the intialize feature for ?

revvin9k

Not to be mean or anything, but if you're asking how to zero it out...it would probably be best you wait to go to a shop with a dyno before you do some damage to your beloved motor. My .02.

red_ek_hatch

i want to zero it out because i dont want to damage anything . im askin WHAT should i zero out . theres a few things you can adjust and im just trying to make sure what i should zero out . but yeah im leaving the tuning to the pro's still in need of what i should set to zero in particular .

revvin9k

My guess would be all the fuel increments. It's listed in the settings under HI and or LO if I remeber mine correctly.