So i finished the racetronix fuelpump install on my 95z today the car had gotten to where if you floored it it just fell on it's face surging nearly dieing, checked fuel pressure it was 43 at idle dropped to around 20 at wot, so I put a new pump in, has a new opti in it, new plugs, new wires and after the pump install it's even worse than before!!!!! Fuel psi reads the same but now it just dies when you try to push it past 2000 rpms, any ideas?

 

It may be a dumb question but have you checked the fuel filter?

 

new fuel filter too

 

Sometimes you just have to go to dealer to ascertain a correct dianosis. Should be $40 to $60. If they are wrong then you don't have to pay them. I am pretty sure a competant technician could figure it out.

 

The fuel pressure still drop's to 20 psi at WOT after the new pump? Does it run fine if you drive normal?

 

runs fine until you go to get into it then it just stumbles all over itself, do you think the regulator is bad maybe?

 

could be a bad 02 sensor. or a corroded connection on any of your other sensors. the 02 sensor is pretty simple to figure out. just unplug both of them. the computer will go into closed loop. go drive the car. if it runs better then that was the problem. on your other sensors just clean the connections

 

got the problem solved feel like a dumb *** now, my buddy came to pick the car up(he's buying it) and it of barely ran so we took it back to the house and double checked the new pump, which was fine then I realized that I had never checked the supplementary pump for the nos dry kit that was on the car when I bought it. pulled it out and presto drives like a new car.

 

Damn are you selling your TA and your Z?

 

maybe I'm still playing the games with the old lady over the ta but with the new ws6 she kinda has some bargaining power on me, I'm kinda doing the "trying" to sell the ta thing hopefully it'll drag on awhile and she'll just forget about it

 

I thought the WS6 was her car.

 

the z was her car now she's stuck with the family suv since she made me sell it serves her right