Volvo RWD 200 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 4/2005 200 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

idle speed 200 1981

posted by  242gt on  Tue Oct 19 06:10 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Aug 18 03:35 CST 2008
[RELATED]

I have a 81 242 turbo that idles fine on start up, but after driving it and coming to a stop the rpm will drop almost to a stall then the rpms jump well above idle. It may do this several times till it finally settles down or it may only take once but it seems to evetually settle and idle correctly.

Any ideas on a fix?

I was goign to go thru the idle setting procedure in the bently book since it uses a CIS (constant idle stabilization) like the 83 but after investigation I found it does not have a wire to disable the system like the book says the 83 and later cars do.

any help would be much appreciated

Jeff








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    idle speed 200 1981

    posted by  smith_t240 on  Tue Oct 19 16:23 CST 2004
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Tue Apr 24 02:21 CST 2007
    [RELATED]

    Hey there I have a 1983 244 Turbo that I was having problems with. Every time I would push in the clutch to come to a stop, the engine would almost die, then catch and idle fine. After cleaning the idle air motor ( I thought that it may have been from a stickign valve, so clean this if you haven't lately ) I readjusted my base idle. When I grounded the connector or plugged the hoses, the car died. I finally figured out that the throttle plate completely closed at idle. So I adjusted it out to the point that it wouldn't stumble on return to idle anymore. This fixed the problem, but unfortuneatly now it idles at 1200 rpms, and any lower it will drop before catching idle. Haven't had time to look into it more. Try this and let us know,

    Smith








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    idle speed 200 1981

    posted by  mario on  Tue Oct 19 07:49 CST 2004
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Sep 26 09:26 CST 2014
    [RELATED]

    Jeff,

    Per HaynesPage 4a-32:

    If the vehicle is not equipped with the blue/white test connector, plug the hoses from control valve to prevent air from entering the valve, this will eliminate the Constant Idle Speed system to allow base idle setting.

    Hope that helps.

    Mario







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.