IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: earlbrown on May 10 2012, 05:35:02 PM
-
I just installed a ground jumper from the engine to the frame and my fuel pressure jumped from 45 to 52.
When I re-engineered my fuel pump to a Supra with big ass power lines I grounded it at the rear bumper shock as a kicker to the stock ground line.
I knew there was something I was forgetting to do :)
(http://www.turbobuicks.com/forums/attachments/buick-v6-turbo-tech/45780d1274390923-day-life-earl-im002704.jpg)
The caption above this picture was "Pretty sure my pump will never be starved for voltage"...... It will be if the damn frame isn't a ground!
-
sheet metal is the direct ground path and the frame is an indirect ground unless you go from engine to frame up front....sheet metal has always seemed pretty iffy to me, but, with a good ground from engine to firewall, it gets a lot better.
Too bad you did not check the voltage drop with your meter on the ground side....I am always interested to see what is going on. That is the next project on my Challenger as the sender resistance seems to have gained a lot from the tank to the dash....wonder ing if it is the ground side that is causing it.
-
thanks for the info.
-
I remember on TBS.com some guru said grounds were not a problem...till he hooked up a ground and solved his problems...lol