2002 grand prix gtp fuel pressure

where should the prssure be at. i tested iut the first time and it said 46. then i tested it again and it kept bouncing back and forth from 44 to 46

is this key on engine off, or while the engine is running?

its while the engine is running

your fuel pressure is fine.

What does the fuel pressure read at fuel pump prime? That is with ignition to ON only without engine running. It should be in a range of 48-55 psi.

when i hit a hill with the pedal down i have no problem. but when i am on a hill maintaining speed it kinda surges, like a light tugging. but if u give it gas its fine. any suggestions?

How old are the plugs & wires?

And if new, what brand?

Also what is the condition of the MAF air straightener screen in your throttle body?

the plugs are two weeks old and are the ngk iridium plugs. i had the same prob before changing the plugs. the wires are about four months old. they are ac delco

the screen also seems fine