Volvo RWD 700 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 5/2013 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

runs very rich 700 1987

posted by  someone claiming to be Eric on  Fri Nov 21 14:45 CST 2003 [RELATED]

Hello, seeking help. My 1987 740 turbo runs very rich at all times. So rich that it fails hydrocarbon emissions test. Replaced catalytic converter which was just totally clogged. Have replaced O2 sensor. Could it be the temperature switch which tells the computer the engine is cold? Had a similar problem although not as severe on another vehicle and changing the temperature sensor got the gas mileage back. Engine runs ok until higher rpm's then it gets flat and bogs woen unless you feather the pedal. Help????






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New runs very rich [700][1987]
posted by  someone claiming to be Eric  on Fri Nov 21 14:45 CST 2003 >


<< < > >>



©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.