Kanes2413

iTrader: (9)

Im really confused on what the problem is now. I recently installed Lt's ORy cutout/catback and Cai on my 93 lt1 t/a . It was fine for the first 4-5 days now it runs awful. When i try to put the peddle down the car shakes a ton and the sound is odd mellow not normal. Same with the cutout is shakes a ton and sounds like a loud rattle. I did drive in the rain but not for long before this started but i cant think it would be that.I also havent gotten a tune yet but i am tommarow. Im also having the shop fix the little rattle from when i step on it but this problem i have no idea any ideas help please!!!

2K2WS6TA

iTrader: (2)

Opti get wet in the rain?

Kanes2413

iTrader: (9)

But wouldnt that only have to do with the start up and not how its running

2K2WS6TA

iTrader: (2)

Oh no, it'll have an effect on how it runs too, the voltage at the plug isn't high enough to fully light the fire
Your fuel pump could be going out too, or you may have burned a plug wire (or 2) on the new LTs (that happened to my L98 )