put new fuel pump in fuel regulator my buddy put a tech 2 scanner on it everything looked good injectors are good so didnt know if anybodys ever had this problem all the grounds are good im lost

 

A little bit more info would really help. What type of truck, year/model/motor, What mods do you have done to the truck?

 

02 silverado 220/220 .581/.581 112lsa long tubes 3000 circle d converter wheatley tune 5.3 sorry im good for leavin the info out

 

if the fuel pump is new, then i have three questions
what brand pump is it?
how long has your fuel filter been there since it was last changed?
how many miles on the truck?

 

My stocker would rum about 40lbs or so ...you have an adjustable fuel pressure regulator on that year ...but it changes anyway according to vacume pressure,,,I know run 55psi at idle with walbro and 5 psi + stock regulator

 

its an airtex from oreilly brand new the fuel filter was changed at 80 thousand and i just rolled over 84 thousand the relays good i checked line to make sure i didnt crush it when i was pullin or puttin the motor back in the only thing i havent done is actually got under the truck and checked to make sure i dont have power loss to the pump its suppose to have 60 at idle and suppose to flash to 68 at wot the guage barely moves

 

probably a bad fuel pump. GM spec for idle is around 52-55 psi at idle and 58 at wot

 

hell everybody i talked to says 60

 

Are you checking the FP with the Vac line OFF the reg?

 

no its on ive tried it with it off and it doesnt change