Volvo AWD 400 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 10/2003 400 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Poor running until the Lambda sond kicks in 400

> Another, possibly unconnected, fault with this car is the idle is slow 500 - 700 rpm and irregular. This is worse when the engine is cold,

Hmm.. Then I'd check out your idle-control valve. It may not be working properly and be the source of your 'air leak' if it doesn't close all the way... It may be stuck at a certain opening and letting air always bypass the throttle.

It my be either wiring/contacts or the valve itself is gummed up/jammed or the motor has burned through a winding.

Bye, Arno.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Poor running until the Lambda sond kicks in [400]
posted by  Philip Bradbury  on Sun May 26 05:44 CST 2002 >


<< < > >>



©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.