Can someone identify this part
02-12-08, 07:10 PM
#1
Can someone identify this part
Ok. Long story short, I don't know where this goes or what it is. Could someone please fill me in? I think its missing a connector. Any help would be greatly appreciated!
Let me know if you guys need better pictures.
Let me know if you guys need better pictures.
02-12-08, 07:15 PM
#2
Lives on the Forum
02-12-08, 09:42 PM
#5
Lives on the Forum
It has nothing to do with boost...
It will not cause the turbo to make more boost when removed...
It's just for idle control, and I think it's for power steering.
Basically, it's for idle control, and you can throw it away and cap the vacuum fittings.
-Ted
02-12-08, 10:11 PM
#7
Looks like this is where it will mount to on the UIM. Someone please correct me if I'm mistaken.
My real question now I guess is, does this have anything to do with emissions? Judging by Ted's reply probably not, but I live in California and just want to make sure I have everything for smog.
My real question now I guess is, does this have anything to do with emissions? Judging by Ted's reply probably not, but I live in California and just want to make sure I have everything for smog.
Trending Topics
02-13-08, 07:00 AM
#11
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
Just in case you didn't realize it, NJGREENBUD wroter the real skinney on what the heck it is. Pay attention to NJ.
And he's right. The non turbo series four has the same outfit (AIR BYPASS SOLENOID VALVE) but it's on the left rear side of the engine just aft of the BAC's location. That one has an additional relay involved with it. Its relay is located near the front right side of the engine bay and engages for seventeen seconds duing a cold start to drive the starting rpms up to close to 3000rpm for .....seventeen seconds. The Turbo cars do not have the additional relay but still preform the same way. For seventeen seconds.
It's written in the FSM.
And he's right. The non turbo series four has the same outfit (AIR BYPASS SOLENOID VALVE) but it's on the left rear side of the engine just aft of the BAC's location. That one has an additional relay involved with it. Its relay is located near the front right side of the engine bay and engages for seventeen seconds duing a cold start to drive the starting rpms up to close to 3000rpm for .....seventeen seconds. The Turbo cars do not have the additional relay but still preform the same way. For seventeen seconds.
It's written in the FSM.
02-13-08, 08:10 AM
#12
+1 NJ and Hailers post.
Not sure if some of the other posters are jokers or just spreading BS/misinformation. Look for a pipe nipple and two threaded holes nearby for that bracket/valve to mount on. Not sure where it goes in the TII, so I won't comment on that.
Unlike the BAC valve (which varies the amount it is open depending on the electrical pulse to it from the computer based on engine electrical load at idle), the Air bypass valve is either on or off, depending on the state of the air bypass relay, controlled by the computer.
You can read this up in the FSM, linked in my sig.
Not sure if some of the other posters are jokers or just spreading BS/misinformation. Look for a pipe nipple and two threaded holes nearby for that bracket/valve to mount on. Not sure where it goes in the TII, so I won't comment on that.
Unlike the BAC valve (which varies the amount it is open depending on the electrical pulse to it from the computer based on engine electrical load at idle), the Air bypass valve is either on or off, depending on the state of the air bypass relay, controlled by the computer.
You can read this up in the FSM, linked in my sig.
02-13-08, 08:48 AM
#13
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
I deleted all the wrong and ridiculous posts. If you don't know, don't guess and therefore don't post.
The part is the air bypass solenoid valve. Called the ABS valve, or more commonly ASV valve.
It opens during cold starts to allow more air into the engine for the 3K startup as HAILERS already posted. It also helps keep the engine idle from dropping when the power steering is turned to extremes.
All this information (and more!) is found in the Factory Service Manual (see FAQ for free download) and the Haynes manual.
The part is the air bypass solenoid valve. Called the ABS valve, or more commonly ASV valve.
It opens during cold starts to allow more air into the engine for the 3K startup as HAILERS already posted. It also helps keep the engine idle from dropping when the power steering is turned to extremes.
All this information (and more!) is found in the Factory Service Manual (see FAQ for free download) and the Haynes manual.
02-18-08, 10:04 AM
#16
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
If you do not have power steering, then you can eliminate the ASV. Otherwise keep it in place.
Do not remove the BAC. It's how the ECU controls your idle.
02-18-08, 11:51 AM
#17
It's Radiation Therapy
Join Date: Nov 2005
Location: Nashville, TN
Posts: 902
Likes: 0
Received 0 Likes
on
0 Posts
Just in case you didn't realize it, NJGREENBUD wroter the real skinney on what the heck it is. Pay attention to NJ.
And he's right. The non turbo series four has the same outfit (AIR BYPASS SOLENOID VALVE) but it's on the left rear side of the engine just aft of the BAC's location. That one has an additional relay involved with it. Its relay is located near the front right side of the engine bay and engages for seventeen seconds duing a cold start to drive the starting rpms up to close to 3000rpm for .....seventeen seconds. The Turbo cars do not have the additional relay but still preform the same way. For seventeen seconds.
It's written in the FSM.
And he's right. The non turbo series four has the same outfit (AIR BYPASS SOLENOID VALVE) but it's on the left rear side of the engine just aft of the BAC's location. That one has an additional relay involved with it. Its relay is located near the front right side of the engine bay and engages for seventeen seconds duing a cold start to drive the starting rpms up to close to 3000rpm for .....seventeen seconds. The Turbo cars do not have the additional relay but still preform the same way. For seventeen seconds.
It's written in the FSM.
Ah, thanks! I've been looking at the left side under the BACV where this little guy is just dangling loose. Hopefully I will figure out where is goes and secure it now.
02-18-08, 01:50 PM
#20
It's Radiation Therapy
Join Date: Nov 2005
Location: Nashville, TN
Posts: 902
Likes: 0
Received 0 Likes
on
0 Posts
AH, now I've got it. The reason I'm having so much trouble figuring out where this goes is because there is an additional bracket for it on S4 N/A's. I am missing the bracket marked with a red X below:
02-20-08, 06:40 PM
#22
It's Radiation Therapy
Join Date: Nov 2005
Location: Nashville, TN
Posts: 902
Likes: 0
Received 0 Likes
on
0 Posts
GAH!!
I went out and bought that bracket from the junk yard. I even took the time to clean it up and paint it black...
And the PITA part of it is... I have no mounting points on the dynamic chamber!
What am I missing here people?
I went out and bought that bracket from the junk yard. I even took the time to clean it up and paint it black...
And the PITA part of it is... I have no mounting points on the dynamic chamber!
What am I missing here people?
Thread
Thread Starter
Forum
Replies
Last Post
driftfcbuckey
The Bad & Fugly Members
10
12-02-15 05:48 PM
KAL797
Test Area 51
0
08-11-15 03:47 PM