Volvo RWD 200 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 12/2015 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Idle Surge Update 200 1990

posted by  someone claiming to be Tim on  Thu Dec 31 13:07 CST 2009 [RELATED]

So after cleaning and checking everything between the outside air intake and the intake manifold, I decided to test the O2 sensor. Voltage was holding at 0.1v with no other changes - OK its shot. Unplugged the 2 plug heater and idle smoothed right out. Plugged it back in and it surged again. Unplugged the single O2 sensor wire and again it smoothed right out. Measured voltage without heater wire plugged in - .1 to .2v Plug it back in and voltage jumps to 5+ !!! It is a splice job (stupid idea), but I used really good quality all weather crimps and wrapped evrything with silicone tape. Could it still be a short? And does the O2 sensor have that much effect on the idle?






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Idle Surge Update [200][1990]
posted by  someone claiming to be Tim  on Thu Dec 31 13:07 CST 2009 >


<< < > >>



©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.