Thread: 3800 Problem

After I put my headers and pulley on last weekend I took my car out and I went WOT and my rpm went to 4000 and just bounced their until I let off a little bit then it went normal, so I put a new fuel pump in tonight and took it out did a burnout went fine then when I got to 2nd gear it did the same thing, anybody know what the problem could be and also what is the fuel psi suppose to be at because I when I checked it, it was at about 46psi on the new pump and the old one held about 39-41psi! Any help to this problem would be appreciated!

Let me guess... you are not actively scanning parameters on the car?

Negitive, not yet

Please give us more info.

Year
Mileage
Model
any other history etc that you think we might ask.

1999 Pontiac Grand Prix GTP 3800 Series 2 Supercharged, 182,520 Miles 3.6 zzp pulley, speed daddy headers

Sorry ...lack of caffination caused me to now see the sig. How long have those msd's been on. They have been known to break down and cause issues at higher rpm. Usually when they are less than a year old.

Its ok lol... the msd's have been on for about 10 months do you think it might need new ones and it it does should i go GM coil packs?

Put your stock coil packs back on and see if you notice a difference.

the stock ones were bad, when i first got the car i took it out and went wot and it did almost the same thing but with the stock ones the ses came on

Ahh. Time to make a junkyard trip then

im thinking so I will probably pick up a new fuel filter as well

Couldn't hurt. Start spraying the fittings with pb blaster now.

And remember, twist the filter, not the line.

Got it thanks for the help hope it works