Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 7/1998 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Dawes Devices&Autometer mods to 1990 760 Turbo 700 1990

I had the DawesDevices Superduty Boost Controller installed by a friend and have used it for a few months now to my satisfaction. Last weekend my friend installed an Autometer mechanical boost/vac gauge which works fine. However, there are some mysterious problems that have happened a couple of times since the gauge was installed. First of all, after we installed the gauge, the car would not accelerate past 5-10 mph. We thought it was the computer not adjusting after we left a leak in the hose going to the gauge. So, we stopped up that hose and that didn't help. We then tried to reset the computer by pulling a couple of fuses and turning the key. We put back the fuses and the car ran fine. Then today I tried to go from 0-60 and the car was bucking. This happened in three consecutive attempts. I had to avoid giving it more than 5 psi boost or it would buck. Then after driving a couple of miles I tried it again and it ran fine with 10+ psi. I continued giving it more and more boost without any problem. What could be the problem? Could it be the installation of the boost gauge or just a coincidence like water in the gas or some other engine component going bad? Any thoughts? PS-I'm glad I finally installed a calibrated boost gauge. We power-braked the car and found out it was doing over 16 psi. Another question: since I had the boost controller set this high for like 4 months, how would I know now if there has been any damage? -Replies are much appreciated!...






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Dawes Devices&amp;Autometer mods to 1990 760 Turbo [700][1990]
posted by  someone claiming to be David  on Thu May 17 14:53 CST 2001 >


<< < > >>



©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.