WPBTA

iTrader: (3)

Hello, I bought a 01 Trans Am a couple of days ago. I am having a little problem with it. It’s sputtering under throttle and i cant figure out why. I changed the plugs and put a new MAF on it which cleaned it up a little. The car has full exhaust headers back, stall, shift kit, and I think a mild cam. Going to try changing the O2 sensors next. What do you guys think it could be? Thanks in advance

2001NBMZ28

Was it doing the same thing before you changed the plugs/MAF? SES on?

WPBTA

iTrader: (3)

It was doing it alot worse it cleard up and yea the SES is on.

1999Transamman

iTrader: (18)

Mine did the same thing after I bought it, turned out to be the throttle position sensor.

AW794

iTrader: (7)

wont a throttle position only help at idle not when ur giving it gas

2001NBMZ28

Since the SES is on drop by some place like auto zone and have them read the code(s) for you, around here it's free.

WPBTA

iTrader: (3)

i have one and it came up with mis fire and lean

2001NBMZ28

What were the exact codes?

WPBTA

iTrader: (3)

i am not sure i will find out on sat again

2001NBMZ28

Misfire could just be one of your new plugs/wires. The lean could be one bank, or both banks - the codes help nail it down. When you go back write down the codes, don't worry about the descriptions. In the interim double check all your plugs/wires and make sure you have a good seal on the MAF and no vacuum leaks. Did you put a stock MAF on the car?

5_02ls1

iTrader: (20)

hmmm fuel filter maybe????sounds like low fuel pressure

WPBTA

iTrader: (3)

Put the new o2s in and running 100% better.Has little back smoke when flooring it.

cowboysfan

black smoke is cause u are running rich due to exhaust system. u can have it tuned but, if u r planning to install cam I would wait for tune till cam installation. if u only get black smoke at wot I would worry about it. so as long as it's not thick black smoke.



fuerzaws6

WPBTA

iTrader: (3)

the car dose have a cam i am going to ge it tuned soon