Phantomkid

So as you can tell ive by the hour ive been searching for awhile and found lots of good information. although some still confuses me. 1 of the confusing things is anti after burn valve. from what ive gathered its located in the BAC . but the air control valve also consist of the anti after burn valve. could some please clear that up little confused. a picture a saw of the anti afterburn on the BAC and the hoses running to the intake manifold. does the bigger hose run to the acv? Also another confusing thing is the PCV does the line right after the filler cap run into the rats nest going to the intake right after the MAF? if so i know the other line from the block run to right after the throttle plate. is there another line somewhere that i dont know about because under boost wouldnt that just push boost into the case... please any help is greatly just trying to get this project on the road been down for to long... happy holidays guys...

Icemark

the anti-afterburn valve (ACV) is unrelated to the BAC and not together

Phantomkid

Ok so i saw a picture of a bac with an anti afterburner attached in the image.. thats why i was confused. But now ive got a few new quetions the twin scroll turbo charger solenoid valve controls exhaust gas flow. so i was thinking that this controls the switching actuator in the exhaust manifold because it doesnt control the wastegate. But im missing the inlet on the actuator so thats probably gonna be capped for now... please tell me if im wrong? just trying to figure out this madness.. also i have a line for the switching solenoid that runs to the lower intake manifold the line is 3ft so and the distance from the rats nest outlet to manifold is no more then 5 inches.. do i have this hooked up to the wrong spot or is there some kind of reasoning behind this madness... sorry for all the questions just confused about this emissions setup ive searched and found loads of good information but am still stuck on a few things any feedback is greatly appreciated thanks guys and merry christmas..
ps im an idiot should have stated this before this im trying tot hook up the emissions controls for an s4 turbo motor..

Phantomkid

never mind ive found the information on the twin scroll it does controll the flap in the manifold. So im guessing that with it hooked up at 2700 rpm its redirect more exhauste to the turbo. so without it hooked up i wont be seeing very much boost and ill be looking at backpressure in the manifold... what im kinda looking for the car has a huge exhaust but no ported wastegate.

Phantomkid

Just got 2 questions that havnt been resolved. the switching solenoid inputs and outputs are the lower intake manifold to solenoid then acv? and the fuel pressure regulator that goes to the pressure regulator that gets input from intake? just trying to get this together and figure out the emissions.. its kinda hard with these pictures ive seen some show the fpr going to lower intake manifold( but then hows it controlled by solenoid) and the other picture was mislabeled thats why i was so confused.. thanks for any help guys

Phantomkid

ok so i figure thats pictures will help a bunch onn trying to figure out where these go sorry i guys like ive said ive searched for hours on hours and have learned alot but theres still a few that im confused about... heres for number one this is located in between the oil injectors

Phantomkid

the next is the air control valve im a little confused which is to the relief solenoid and which for the switching valve im thinking 1. is the switching and 2 is the relief i might be wrong all together

Phantomkid

Phantomkid

ok here some from the upper intake that im confused on these here i believe that number 5 is to the oil injectors

Phantomkid

Phantomkid

ok and the last one this is on the throttle body im not sure what this vacuum diaphram is for and where the nipple runs to

Phantomkid

Thanks so much for any help guys ive bought this motor used with the intake off and now im trying to get it back together and finally in the car. ive looked at fsm several times but trying to follow there diaphram is like a blind man searching for a needle in a haystack... thanks alot guys

Phantomkid

ok so the first picture is the primary air bleed and runs to #6 i believe in the third picture

Phantomkid

ok so ive solved most of these i just have a few left . i know the first picture is for the primary air bleed the second pic http://img169.imageshack.us/my.php?image=1393925jh9.jpg im still wondering on which these nipples lead to...????...? as for the rest of the confusing it lies here http://img49.imageshack.us/my.php?image=1393926be8.jpg i think that 1 goes to the coolant passage attached to the bac that then goes to the water pump... 2 im confused on i think it goes to the brake booster? 3. no idea at all... 4. i konw is the double throttle.. but where does there othere line from the double throttle go? 5. i know goes to the oil injectors spider and 6 goes to the primary air bleed... also this pic http://img183.imageshack.us/my.php?image=1393927kr1.jpg still have no idea.... PLEASE PLEASE PLEASE GUYS i just need some help ive been searching all weekend and only have till tomorrow to get this engine in and try to get it running its been at my moms for 9 months now i want it at my place so i can really work on her..... please guys any help is appreciated so much.........

Phantomkid

ok so i had stuff confused i thought the water thermo was the double throttle i think the picture http://img183.imageshack.us/my.php?image=1393927kr1.jpg is the double throttle and the missing link for the water thermo connects to that please tell me if im wrong? im doing pretty good at answering my own questions but there still some im confused about and im not sure if my answers are correct HELP PLEAAAAAAAAASSSSSSSSEEE....

Phantomkid

ok so for the air control valve the top goes top the switching solenoid while the bottom goes to the relief solenoid. so out of the rats nest in the back corner turbo side theres 6 lines coming from the rats nest ive traced all these lines back to there solenoids my question regarding these is i have 2 lines that run to the switching solenoid makes sense i know one runs to the acv but the other one goes???? please help guys

HAILERS

Top is for the Switching solenoid. The one that sticks straight up. On the switching solenoid itself, the OTHER nipple gets supplied vacuum.

The bottom nipple on the ACV is for the Relief solenoid as you said.

Here's what is honked up. On the ACV you have a short piece of vacuum hose going from a nipple on the top of the ACV going to a nipple in the middle. All incorrect. The top nipple that sticks straight out towards the fender is the vacuum source for the boost sensor. The nipple in the middle ALSO goes to the Relief solenoid, just like the one on the very bottom. That nipple in the middle is air coming directly from the airpump, and is the motivating force to make the relief diaphram move open and shut. So remember, the relief diaphram is pressure operated and not vacuum operated like the other solenoids (turbo car only).

HAILERS

This is the double throttle diaphram. It is fed vacuum from the water thermo valve which in turn is fed vacuum from the very bottom of the three nipples on the bottom of the throttle body.

HAILERS

Your right, that is the fuel injector air bleed that gets fed from the top nipple on the back of the throttle body. That top nipple and the larger one below are NOT vacuum but air taken from before the throttle plates i.e. clean filtered air.

HAILERS

Number 2 should get a line off the back of the intercooler. It is feeding clean air to the solenoid below that nipple. It's the Air Supply Valve for pwr steering.

Number 3 feeds the brake booster.

Number 4 feeds the water thermo valve to the left.

Number 5 feeds the spider that feeds the oil injectors (nipple on top of each oil injector).

Number 6 with the cap on it won't be used. Just remember this is NOT a source of vacuum.

Number one.......is odd to me. It appears to be the water outlet from the water thermo valve, and if it is, then it will go over the top of the manifold to the BAC valve. A nipple on the BAC valve that is. The other nipple on the BAC valve will go to a hose that runs to the back of the water pump housiing.

HAILERS

Double throttle diaphram which gets vacuum from the water thermo valve at the back of the throttle body. Water thermo valve should have two nipples. One to this double throttle diaphram and the other to the BOTTOM nipple of the three on the back of the throttle body. MUST be the bottom nipple of the three.

mightymite

iTrader: (1)

help

im in the same boat as phantom so im gonna ask a few questions

the oil injectrs i have the oil lines to the oil pump to the injectors hooked up. and 4 hoses into the 4 to 1 spider where does the one hose off the spider thing go??? thanks

Phantomkid

ok let me start out by saying thanks so much for the help. im just alittle confused on this ACV ok so the lopped on in on incorrect and the top part of it for the boost sensor(MAP) and the other goes to the relief solenoid. now the thing that confused me was when you mentioned the airpump that goes to the big inlet correct? im also guess that the relief takes pressure from the middle one thats lopped and activates though the bottom nipple

Phantomkid

ok ive got 2 more questions theres a nipple on the top intake manifold just one next to the BACV does this run to the BOV? also on the BAC there is a hose underneath where does this guy go to?? thanks again guys..

HAILERS

***********ok let me start out by saying thanks so much for the help. im just alittle confused on this ACV ok so the lopped on in on incorrect and the top part of it for the boost sensor(MAP) and the other goes to the relief solenoid. now the thing that confused me was when you mentioned the airpump that goes to the big inlet correct? im also guess that the relief takes pressure from the middle one thats lopped and activates though the bottom nipple*************8


No, you got me wrong. That nipple in the middle and a bit to the fwd part of the ACV sends airpump air to the Relief solenoid on the other side of the engine. I'm talking the small nipple on the ACV that in your picture seems to have a vac hose on it and the other end of that vac hose going to the nipple at the top of the ACV (boost sensor nipple).

I'm just saying that, that nipple iin the middle that sticks straight out toward the fender, supplys air pump air to the Relief Solenoid on the other side of the engine. Then, when the solenoid commands it, it routes that airpump air back to the right side of the engine to the bottom of the ACV.

Hold the ACV in your hand. Blow into the bottom most nipple. You'll see/hear the internal valve in the ACV move. You can see it move if looking into the very large nipple on the bottom of the ACV as you blow into the bottom nipple.

I mention that so you can understand why air pump air pressure is sent from the ACV's middle nipple to the other side of the engine to the Relief solenoid. It takes Pressure to operate the Relief diaphram in the ACV, unlike what happens on a non turbo ACV.