Clarification on removing BAC and AWS
#1
King of the Loop
Thread Starter
Clarification on removing BAC and AWS
Ok guys I want to remove my BAC and AWS sunday and I just want to make sure im doing this correctly before I get started.
As far as the BAC goes the only thing that worries me is the coolant line that runs through it. I was just going to remove the valve, block off the location on the engine and relink the 2 coolant lines with a piece of similar sized pipe. Does anyone here know the diameter of these hoses? If not Ill check tomorrow night.
For the AWS I just see the 2 lines, one runs to the UIM and the other under the dynamic chamber and into the intake. A search told me just to remove the solenoid, plug the hole in the uim, and pull out the other hose.
Am i missing anything?
As far as the BAC goes the only thing that worries me is the coolant line that runs through it. I was just going to remove the valve, block off the location on the engine and relink the 2 coolant lines with a piece of similar sized pipe. Does anyone here know the diameter of these hoses? If not Ill check tomorrow night.
For the AWS I just see the 2 lines, one runs to the UIM and the other under the dynamic chamber and into the intake. A search told me just to remove the solenoid, plug the hole in the uim, and pull out the other hose.
Am i missing anything?
#2
Rotary Power
iTrader: (15)
Originally Posted by BklynRX7
Ok guys I want to remove my BAC and AWS sunday and I just want to make sure im doing this correctly before I get started.
As far as the BAC goes the only thing that worries me is the coolant line that runs through it. I was just going to remove the valve, block off the location on the engine and relink the 2 coolant lines with a piece of similar sized pipe. Does anyone here know the diameter of these hoses? If not Ill check tomorrow night.
For the AWS I just see the 2 lines, one runs to the UIM and the other under the dynamic chamber and into the intake. A search told me just to remove the solenoid, plug the hole in the uim, and pull out the other hose.
Am i missing anything?
As far as the BAC goes the only thing that worries me is the coolant line that runs through it. I was just going to remove the valve, block off the location on the engine and relink the 2 coolant lines with a piece of similar sized pipe. Does anyone here know the diameter of these hoses? If not Ill check tomorrow night.
For the AWS I just see the 2 lines, one runs to the UIM and the other under the dynamic chamber and into the intake. A search told me just to remove the solenoid, plug the hole in the uim, and pull out the other hose.
Am i missing anything?
They are sold here
http://www.2751engineering.com/2751parts.html
#4
Fast when it works
Join Date: Oct 2005
Location: Missoula MT usa
Posts: 267
Likes: 0
Received 0 Likes
on
0 Posts
I've been playing with my BAC little bit... I blocked it off with a piece of gasket material(left the middle intact) and i couldnt get my car to run... It runs when I leave it unplugged, but when i block it off it doesnt work at all. I'm assuming you'd have to adjust the throttle body to get it to work right?
#5
King of the Loop
Thread Starter
Originally Posted by t-too
I've been playing with my BAC little bit... I blocked it off with a piece of gasket material(left the middle intact) and i couldnt get my car to run... It runs when I leave it unplugged, but when i block it off it doesnt work at all. I'm assuming you'd have to adjust the throttle body to get it to work right?
#7
King of the Loop
Thread Starter
Originally Posted by NZConvertible
You're sucking in unmetered air and making the idle mixture too lean. Add a connection to the intake pipe like it's supposed to have.
Last edited by BklynRX7; 03-10-07 at 05:40 PM.
Trending Topics
#8
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
So veave them both where they are and disconnect the electrical plugs to disable them. They'll stay closed and you'll know what it's like to live without them.
Personally I'd ditch the AWS (pointless without cats) and leave the BAC valve. I like idle speed control.
Personally I'd ditch the AWS (pointless without cats) and leave the BAC valve. I like idle speed control.
#10
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
****, the aws doesnt need one, and s5's didnt have a cold start setup, mazda recalled it.
************************************************** ***********************
You mispoke there. Only the SUBZERO ASSIST was removed. They had enough sense to keep the fast idle cam, water thermowax, cam roller etc.
I've no idea what cold start setup is other than the above list of parts.
************************************************** ***********************
You mispoke there. Only the SUBZERO ASSIST was removed. They had enough sense to keep the fast idle cam, water thermowax, cam roller etc.
I've no idea what cold start setup is other than the above list of parts.
#12
King of the Loop
Thread Starter
Originally Posted by HAILERS
****, the aws doesnt need one, and s5's didnt have a cold start setup, mazda recalled it.
************************************************** ***********************
You mispoke there. Only the SUBZERO ASSIST was removed. They had enough sense to keep the fast idle cam, water thermowax, cam roller etc.
I've no idea what cold start setup is other than the above list of parts.
************************************************** ***********************
You mispoke there. Only the SUBZERO ASSIST was removed. They had enough sense to keep the fast idle cam, water thermowax, cam roller etc.
I've no idea what cold start setup is other than the above list of parts.
Originally Posted by NZConvertible
It's in the S5 FSM...
yes, I mixed the 2 up. I realized the difference now.
#14
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
Pros: None. Well, I guess removal could make the engine bay look slightly "cleaner".
Cons: ECU can no longer control idle. Thus, any load on the engine (electrical or mechanical) will cause a drop in RPM. Causes annoyances like the car stalling when you turn on the headlights/defrost/AC, makes the car easier to stall if you drag the RPM too far down during decel, etc.
Cons: ECU can no longer control idle. Thus, any load on the engine (electrical or mechanical) will cause a drop in RPM. Causes annoyances like the car stalling when you turn on the headlights/defrost/AC, makes the car easier to stall if you drag the RPM too far down during decel, etc.
#17
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
Originally Posted by dreadseb
If there are no pros to this then why has it been done on more than a handfull of occasions?
There are a number of reason really...
On a pure track car, there's no reason for the BAC, so that's a valid option.
Sometimes people don't run them with standalones because it's not always necessary as you can more finely tune the idle with varying loads.
Some people think it makes the car more reliable to remove "unnecessary parts". When you think about it, when is the last time that a BAC failure stopped someone from driving their car? To me, a car that needs to idle at 1000+ RPM, may stall when the headlights/e-fan/AC/etc. is turned on is the definition of unreliable.
Some people think they will get more power. No idea how that one started.
But by far, most people don't understand what they are doing and are just imitating others without putting any thought into it.
#19
King of the Loop
Thread Starter
As of right now the aws is gone and the BAC is unplugged. The car idles at around 850 with the lights and fogs on and doesnt drop below 500 when decelerating hard. I dont have any other accessories.
When I start it after sitting several hours i have to tap the gas one time to keep from shutting off but its smooth sailing from then on. Ill probably totally remove the BAC next sunday. Once I removed the AWS the check engine light came on, ill find a way around this.
When I start it after sitting several hours i have to tap the gas one time to keep from shutting off but its smooth sailing from then on. Ill probably totally remove the BAC next sunday. Once I removed the AWS the check engine light came on, ill find a way around this.
#20
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Try it with the headlights, foglights, brake lights, wipers, rear defroster and stereo on, simulating sitting at an intersection on a rainy winter day with foggy windows. Add A/C to that and you'll know why I'll never remove my BAC valve.
To get rid of the CEL and error code, measure the resistance of the solenoid's coil, and put a resistor of similar value across the connector pins.
To get rid of the CEL and error code, measure the resistance of the solenoid's coil, and put a resistor of similar value across the connector pins.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM