need help with 98 trans am

[fastassbird05]

Ok I am new here so if i posted this wrong.... i apologize..anyhow i am having alot of problems with a 98 trans am i bought 3 years ago....I try to accelerate and the car literally chokes and i hear a popping noice under the headers like popcorn, whenever i try and accelerate....The RPM's wont go past 3 and when i try to force it, the car acts as if it cant breathe and almost turns off unless i let go off the gas. I changed the gas filter and it got a little better, but still it doesn't have the power it had.I have taken my car to different mechanics but no one can figure out whats wrong with it...my fuel pump is still good and i have no clue what it could be...please help
1998 pontiac trans am autom- 87,000miles, no huge mods everything stock except for slp intake, k&n

[Zboner]

auto or m6?

[shady milkman]

exhuast leak, dirty maf, have you checked the fuel rails and the entire fuel system..it sounds like ..well exactly what your saying..its choking its self out when you push it...man yea i'd check all things related to fuel, air intake..um also try the pcm relearn...you never know sorry man i'll rack my brain and try to give you more help..i'd try posting this shit in the internal section too.

[bigrondownhiller]

has the car sat for a long time? if it sits the cats could clog and it will run just like you described.

[ss~zoso~ss]

check all of the listed above, and replace plugs and wires

[Toes]

Cracked Plug will cause a simular condition if their is no codes to pull

[Too Fast]

Sounds like poor fuel pressure/volume under load. Has anybody checked this? That would be the first thing I would check. I have worked at Goodyear as a driveability tech for 18 years. It is easy ....

[ak77ta]

I have seen a ton of cases like you describe and have always seen them using a reusable air filter that was over oiled and coated the MAF with oil. Re clean the filter, clean the MAF with denatured alcohol, an re oil the filter lightly. Enjoy