hesitates on take off now wants to die..HELP!!!

[matt evans]

got a 02 z28 with 77,000 miles here my problem its wanting to idle funny and now when i take off from a stop it like it takes a min for it to realize the peddle been pressed and when i shift down to a stop and try to take off again it does the same thing i just had the trans rebuilt earlier this year and this past week i had true duals installed with x-pipe had cats on it and we removed them but put the 02 sensors back in now here the real mind bender its not throwing any codes at all so any advice is greatly appreciated thanks

[cammed goat]

Clean the MAF with MAF cleaner. Your MAF could be dirty but not trip any codes. Also, if you have no cats, you might need a tune as the computer will go whacky with the after-cat O2s trying to read the exhaust gases that are flowing faster than they did when the cats were initially in the car. Let us know if we can be of any further assistance.

[matt evans]

the car was already cammed and had pacesetter longtubes on it when i got it the dealership had to put cats on it to pass emissions here when i had the exhaust changed last week we removed the cats but put bungs in and reinserted the back 02 sensors and still no code i cleaned the maf today before work but didnt have time to drive it it has a slight stutter if you give it gas from idle but clears up is it just in automatic cars it does this or you think a tune can fix it thanks for the help!

[RyanJM]

I drove one that did it because of a couple bad plugs but having a good shop that also does tuning could probably tell you what it is. I know when my car was running a little off my friend plugged in his HP tuner and found some fuel setting weren't right and after a quick adjustment and ride the car was faster and smoother than it was before. No issues since those minor adjustments. Was just a crappy dyno tune the shop before did and easily fixed.

[cammed goat]

I drove one that did it because of a couple bad plugs but having a good shop that also does tuning could probably tell you what it is. I know when my car was running a little off my friend plugged in his HP tuner and found some fuel setting weren't right and after a quick adjustment and ride the car was faster and smoother than it was before. No issues since those minor adjustments. Was just a crappy dyno tune the shop before did and easily fixed.