fastazzls1

i have a 2000 trans am ws6 car seems to have no power down low its m6 with 3.42 rear axle ratio with 30k miles it just doesnt seem to pull very hard throught the rpm range, my brothers car pulls very hard and its all stock as well was wondering what could be the possible problem if any no misfires check engine light or anything in that nature

nomasterase

iTrader: (4)

Dirty maf sensor or plugged fuel filter maybe?

Intimidator02SS

Try unplugging the mass air flow sensor and driving. This will flag a check engine light FYI. Other than that, you should really have it checked out. Do you know anyone with a diagnostic scan tool?

crainholio

iTrader: (2)

Might get better replies if you post in the right forum.

RedHotG8

iTrader: (1)

Clogged cat converters with cause a loss of power.

ilovechevy1

iTrader: (4)

ummm, make sure nobody stole your LS1 and swapped it for a 4.6L stang engine. If they did then there's your problem lol..I'm jk of course

fastazzls1

thanks i do notice a bit of a stumble at idle and the car has been neglected on the service aspect of its life my neighbor has more money than brains for this is who i bought it from

and sorry for posting in the wrong section lol

also took it this evening ran it pretty hard had a rotten sulphric smell coming from the car only after i ran it hard

mannyman84

iTrader: (2)

How long have u had your car? Is your bros an a4?

fastazzls1

4 months i had an ls1 in a s10 blazer and it pulled like a ******* freight train
and yea my bros car is a 2002 z28 a4 i know the axle ratio is 3.23 car is all stock too 60k on his pulls and pulls and pulls mine just peters out and doesnt really get out of the whole very hard

RedHotG8

iTrader: (1)

That smell is from the cat converters, like I said earlier they are clogged.

fastazzls1

thanks red hot g8 what could cause the catalytic conveters to basically prematurely wear out poor fuel and what would be your suggestions for resolving my issue

smokin91rs

iTrader: (16)

if the cats are clogged or you think they are, you can pull the o2 sensors pre cat or loosing the y-pipe to create a exhuast leak before the cats take it for a quick test drive, if it pulls harder(becuase the car can breath now) then the cats are clogged.

fastazzls1

i will try this give me a few minutesand will post results i hope this works if it does i am going to run kooks and ory

fastazzls1

just made a pull down the road not a big change but it was noticeable when nailing it down low

82cetuner

iTrader: (9)

gut your cats or replace them you found the problem

fastazzls1

yes sir time for some mods long tubes will be the first thing and exhaust any sugesstions on ory and muflers

mannyman84

iTrader: (2)

Check fuel pressure aswell

mannyman84

iTrader: (2)

Did you just feel this or has it been happening? A4's tend to pull little harder down low when power braking and running it. But m6 will pull better up top. What RPM are you launching at?

sepsis

iTrader: (7)

Well, you're still restricted by the cats and the small *** O2 holes provide just a little relief. You noticed the difference though, so like 82cetuner said, you found the problem.

We had the same problem with my old mans Dodge Ram. We gutted the cats and it was perfect. Good luck bro, let us know how it turns out.