Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 2/2008 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Theory of MAP Fault - Thought Experiment 700 1990

uid 40935's pic
posted by  Goatman on  Tue Apr 28 07:27 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Jul 26 20:30 CST 2014
[RELATED]

Hi,


I believe that this sensor is flaking out. Look at the symptoms:

1. Lack of throttle response after high vacuum.

2. Sudden rich running.

3. Missing under load.


This is indicative of a fuel management system / stoichiometry error.

A tabulation of engine vacuum and sensor output would reveal a fault, but the price of a new sensor is not substantial.

If the was sensor sticking at end of travel this would lead to the above symptoms.


Goatman






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Fuel Pressure Regulator Question [700][1990]
posted by  AdmiralSenn  on Sun Apr 19 11:37 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.