Join Date: Dec 2008
taylordoege is offline
Re: 1986 2.8L TBI Fuel Pressure?
more info. if you can what kind of tbi, year of your truck.
cuz i have a 93 s10 with a 220 tbi and it has no fuel pressure till you turn the key to start it. it should run from 9-14 psi. the 220 model tbi is different than all of the others because of this. if you have it you can see two lines for fuel one is bigger than the other, 3/8, and the other is 5/16, the big is the main and the 5/16 is the return line.