Idle speed control valve - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 03-01-2007, 06:58 AM   #11
Registered Member
 
zpiloto's Avatar
 
Join Date: Mar 2006
Posts: 1,225
Country: United States
Quote:
Originally Posted by ELF View Post
My car will not run with the wire disconected, It will run if I keep pushing on the throttle but soon as I let up the engine dies.
If it's a motor and not a solenoid you need to disconnet with the engine running at the idle speed you want it to be at. If you disconnet with the engine off you'll get those results.
__________________

zpiloto is offline   Reply With Quote
Old 03-01-2007, 07:41 AM   #12
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
skewbe-

Quote:
Originally Posted by skewbe View Post
typo, impirical evidence and physical examinations shared here all point to it being a motor, and a rather goofy one at that.
I think we're both right. This is from the "Identifying Wiring Diagram Symbols" table in my electronic Saturn manual :



This is a picture of what the idle control valve is from an electrical standpoint :



What the image above implies to me is two solenoids controlling a motor. The blue wires control the "A" solenoid and the green wires control the "B" solenoid.

Hypothesis : If we knew the amount of volts/amps to send thru the green or blue wires at any one time, we could take FULL independent control of the Saturn idle air control valve .

Does this make sense ?

CarloSW2
__________________

__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 03-01-2007, 10:44 AM   #13
Registered Member
 
skewbe's Avatar
 
Join Date: Jan 2007
Posts: 771
Country: United States
Quick Quiz

Is this (assuming it works and is turning) a solenoid or a motor?




P.S. Yes, it is quite possible to put a manual control on the idle speeed motor, look at what voltages the computer is sending on what wires for a starting point.
Attached Images
 
__________________
Standard Disclaimer
skewbe is offline   Reply With Quote
Old 03-01-2007, 10:56 AM   #14
Registered Member
 
jwxr7's Avatar
 
Join Date: Jan 2007
Posts: 291
Country: United States
Quote:
Is this (assuming it works and is turning) a solenoid or a motor?
I would call that a solenoid. It just has a linear to rotary converter on the end, but a solenoid at heart.

Quote:
This is a picture of what the idle control valve is from an electrical standpoint :
That looks like a step motor symbol to me. A 2 phase stepper to be exact, thats why there are two winding sets with iron bars in the symbol. A step motor is well suited to that kind of positioning job. Kind of like the ones in computer printers.
__________________
Best tank= 81.23 mpg on july 1st 2008
SAVE SOME GAS, SAVE THE WORLD!

jwxr7 is offline   Reply With Quote
Old 03-01-2007, 11:01 AM   #15
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
jwxr7 -

Quote:
Originally Posted by jwxr7 View Post
I would call that a solenoid. It just has a linear to rotary converter on the end, but a solenoid at heart.

That looks like a step motor symbol to me. A 2 phase stepper to be exact, thats why there are two winding sets with iron bars in the symbol. Kind of like the ones in computer printers.
So it probably is a stepper motor after all. That makes sense to me, since it "sits in place" when the juice is off. Other people said it needs more than 4 (5?) wires to be a stepper motor.

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 03-01-2007, 11:07 AM   #16
Registered Member
 
jwxr7's Avatar
 
Join Date: Jan 2007
Posts: 291
Country: United States
Quote:
Other people said it needs more than 4 (5?) wires to be a stepper motor.
Not necessarily, most of the ones I deal with only have four wires because they are two phase . there are some with three or more phases, which would require more wires .
__________________
Best tank= 81.23 mpg on july 1st 2008
SAVE SOME GAS, SAVE THE WORLD!

jwxr7 is offline   Reply With Quote
Old 03-01-2007, 11:07 AM   #17
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
Talking

skewbe -

Quote:
Originally Posted by skewbe View Post
Quick Quiz

Is this (assuming it works and is turning) a solenoid or a motor?




P.S. Yes, it is quite possible to put a manual control on the idle speeed motor, look at what voltages the computer is sending on what wires for a starting point.
Where does the hamster fit in? How can it turn without a hamster spinning the wheel? Is the wheel the multiple ovals above the "-" sign?

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 03-01-2007, 01:10 PM   #18
Registered Member
 
skewbe's Avatar
 
Join Date: Jan 2007
Posts: 771
Country: United States
Quote:
Originally Posted by jwxr7 View Post
I would call that a solenoid. It just has a linear to rotary converter on the end, but a solenoid at heart....
ok then, what is this device, motor or solenoid?


Attached Images
 
__________________
Standard Disclaimer
skewbe is offline   Reply With Quote
Old 03-01-2007, 01:18 PM   #19
FE nut
 
diamondlarry's Avatar
 
Join Date: Sep 2005
Posts: 1,020
Country: United States
Quote:
Originally Posted by skewbe View Post
ok then, what is this device, motor or solenoid?


I'll probably post this somewhere else but, I just picked up a complete set of Saturn factory service manuals. I'll see what they call the Saturn part in there.
__________________
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.

2007 Prius,



Team Slow Burn
diamondlarry is offline   Reply With Quote
Old 03-01-2007, 03:16 PM   #20
FE nut
 
diamondlarry's Avatar
 
Join Date: Sep 2005
Posts: 1,020
Country: United States
Below is a quote from the service manual:

Quote:
The PCM controls a two-coil stepper motor which controls the bypass air intake into the throttle body to decrease or increase engine idle speed.
__________________

__________________
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.

2007 Prius,



Team Slow Burn
diamondlarry is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuelly Android App - eehokie Fuelly Web Support and Community News 2 07-14-2010 09:59 PM
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 08:21 PM
Average fuel mileage line in the history graph? BDC Fuelly Web Support and Community News 1 05-06-2009 01:07 AM
Scangauge gets website upgrade ketel0ne General Fuel Topics 1 08-10-2006 06:52 PM
Make the page lengths 30 posts again, please SVOboy Fuelly Web Support and Community News 4 05-18-2006 01:43 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 11:10 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.