Volvo RWD 900 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 4/2003 900 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

93 944 intermittent rough idle update. 900 1993

The 940 still has the intermittent momentary stumble at idle with a new RPM sensor, ECT, MAP, RSR, and Air Temp Sensor, and the air box modified temporarily so that the manifold heat does not reach the intake. I am getting a 1-1-1 code which leads me to the conclusion that it is not ECU sensor related. The puzzling thing is that the idle goes bad at the exact time that the engine reaches operating temperature.

I have not checked the fuel pressure because the location of the Shrader valve on the fuel manifold is in a position that doesn't allow my fuel pressure gauge to hook up. (That was a brilliant design feature!)

Any new ideas on the subject will be investigated after turkey day!

Regards,
--
Will Dallas, www.willdallas.us, www.willdallas.org, www.willdallas.com 86 245 DL 222K miles, 93 940 260K miles, 88 765 GLE 152K miles






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 93 944 intermittent rough idle update. [900][1993]
posted by  Big Harry  on Mon Nov 20 00:30 CST 2006 >


<< < > >>



©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.