Re: Throttle switch wires - Saab Saab Model 99 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 3/26 M Car Covers (by State of Nine) | 12/12 Make Amazon Pay Saabnet!

[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Clubs | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

Saab Model 99 Bulletin Board
1969-1984 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only


[Main Saab Model 99 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Throttle switch wires
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by Gary Stottler [Email] (#1463) [Profile/Gallery] (more from Gary Stottler) on Sun, 8 Jun 2014 07:55:20 Share Post by Email
In Reply to: Re: Throttle switch wires, don wollum, Sun, 8 Jun 2014 03:47:08
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

Justin,

I think that the 3rd terminal Don is referring two was a "piggy back" terminal that would add another male terminal to an existing connection. I am not sure what that was for. My car at this point has only two terminals (and two wires - the wiring diagram in the manual only shows 2), which is consistent with the simple "normally open" switch. The switch is actuated by a "cam" on the end of the throttle shaft. The switch is open (not activated)up to about 3/4 throttle and then it is closed (activated) from there up to wide open. If I did it right, you can see a picture here of the switch in the open position, you can also follow this link at see it in the closed position:

http://s974.photobucket.com/user/stottler/media/Saabs/Saab%2099%20Turbo%20Engine%20rebuild/LambdaThrottleswitchclosed.jpg.html?sort=3&o=0

There are two wires - the red one goes to the terminal on the side of the switch (towards the back of the car) and they brown one to the terminal on the bottom of the switch. The brown (circuit 359) goes to ground and the red (circuit 355) goes to the Lambda control module under the passenger seat. Don is correct, an ohmmeter should show the switch open when not actuated, and closed (0 ohms) when actuated. At the system level, with the fuel and lambda system running with the engine off (jumper wire across the fuel pump relay socket), you should see the pulse relation at 50% with the switch open and it should jump to 80% when the switch is closed. This is your assurance that you are getting the proper enrichment at high throttle/boost conditions.

Hope that helps!

Gary

_______________________________________ Gary Stottler


Posts in this Thread:
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).


Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)





StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)

This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the Saabnet.com Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP - Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot



Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!