Ok i know what these stand for but i was hoping someone could give me a brief discription of these like what they do etc if you have some time please help me out just trying to learn : )

BAC
TPS
MAF
ACV
TPS
CAS
EGT
WOT
A/F
IC
TMIC
FMIC
SMIC
EGR
PD
PS
TID

again i know what the initials stand for but i want a definition of what it does if you have the time please help me out! thanks

 

Ok im bored, so...

BAC - Bypass Air Control Valve - Adjusts idle air to compensate for extra engine loads (A/C, power steering)

TPS - Throttle Position Sensor - Self-explanitory, tells the computer where the throttle is for a reference point for fuel enrichment.

MAF - Mass Air Flow Sensor - measures the amount of air entering the intake.. anouther reference point for the computer

ACV - Air Control Valve - sends air to the cats from the air pump.. emmisions crap

CAS - Crank Angle Sensor - replaces distributor in 12As, THE reference point for ignition

EGT - Exhaust Gas Temperature - too high = lean, too low = rich. Cant give exact numbers, wish SOMEONE WOULD

WOT - Wide Open Throttle - Do I really need to say more?

A/F - Air/Fuel ratio - Should be around 14.7:1 for economy, 12.5-13:1 for power. 15-16:1 is LEAN

IC, TMIC, FMIC, SMIC - IC is intercooler, a radiator that cools the intake charge on turbocharged vehicles. Top mount (stock TII), Front mount (best place for cooling, requires hacking and cutting) Not sure what S is...side mount? Never heard of one.

EGR - Exhaust Gas Recirculation Valve - Circulates some of the exhaust gases. More emissions crap. Some argue that the inert exhaust gases cool the combustion chamber temps, which is true, but the negative effects of the valve getting plugged off by carbon is MUCH worse.

PD - Pulsation Dampner - Dampens the pulsations from the fuel pump. They tend to leak and start engine fires. Some would say they are useless, and they can be replaced with a banjo bolt. Others say they are necessary. For $125 for a new one, I say Banjo it

PS - power steering

TID - Turbo Inlet Duct - runs between the airbox and compressor on turbocharged engines

I hope someone reads all of this dammit!!!!

 

i read it! helped me out too!

 

Pretty good

SMIC=stock mount IC

 

thanks man alot i appreciate you typing all that out heh and yeah i read it printed it out as a matter of fact. Im just trying to learn all this crap so hopefully i can make sense of it i want to buy a j-spec engine but i dunno what else ill need to buy with it and what i need im clueless so i thought id learn

 

This should be archived...and bob13bt should be lifted upon our shoulders as our hero of definitions.
Very throrough.

 

thanks I needed a referece sheet to look at, I am glas you spent the time typeing it for us

 

I got most of it covered here...
http://fc3s-pro.com/abb.html



-Ted

 

side mount intercooler...i think stock silvias have intercoolers mounted in front, but down to the side in the fender...thus side mounted intercooler.