I have a 2002 WS6 Trans Am and got a MS4 cam installed and tuned last week and my car wont quit dying when I drive!!! Its so frustrating!! I have spent so much money and it is not running right. It mainly cuts off when put in drive and reverse and when slowing down or stopping. So basically all the time! I keep getting told it is because my clamps are POS's and leaking real bad causing my car to run bad. I do not know what to do. I have a loudmouth y pipe and it is sounding bad when I give it gas. I dont know if I need to get a x pipe dual or what I have a Yank SS 3600 stall, and pacesetter headers. The car has been tuned twice and he said it willo not be tuned properly until the exhaust is fixed. Any suggestions?? I am hoping it is just the exhaust and not something else.

 

who is the tuner? From what you are describing it should be able to be tuned to stay on....

 

Did XHP or SNL tune it?

Sounds like something they would say. Just so you know the exhaust has NOTHING to do with the car dying.

 

yeah that def. sounds like a tuning error... i mean even if every single primary was leaking at the flange, that would not cause your car to die, just sounds like a terd while driving... i'd get my money back and take it elsewhere...

 

True story about XHP. They couldn't even tune a set up they spec'd and built. It had the sake issues that the OP described plus it dies on me twice at highway speeds when I pushed in the clutch. Talk about dangerous to lose good steering and brake contol at 65.

 

Really?

 

I'd take it to another tuner and have them look at it.

Like everyone else says it sounds like a tune job.

 

She said it was leaking at the clamps.Leaking past the 02's will not make a car run in the manner she described.

 

There are two idle speed parameters, one for park/nuetral, and one for in gear. Sounds like one of the two, if not both needs to be sped up.

 

You can be leaking 6-8" away from a front 02 and its going to make the pcm dump fuel. I dont care if its a pin hole. If the sensor sees raw air it will add to the fuel trims. Which can make startup very rich.

We check everything mechanically before tuning. If the car has exhaust leaks or vacuum leaks we fix them. If you tune with leaks all your data is CRAP.

Is it the sole reason the car is dieing NO. But its not helping.

 

Thats all you do. Set it for 950 rpms. Tuning is so easy!

 

TRUE STORY.


Notice how all the people saying it's the tuning don't tune cars? On top of that you stuck a HUGE cam in your 346 auto car. Good luck with that.

 

what are you like a shop owner/tuner and do this on a daily basis or something mr.knowitall????



jk

 

Whoa slow down Mike!

I didn't say the o2's can't hurt the tune I simply said that is not her problem. The way she described when and how it's dying is not a problem with fuel trims.
If someone with enough experience tuned the car it would idle fine in the same condition it's in now.

 

I do tune.

 

There's nothing wrong with having a big cam in a 346 auto car. I have one in mine and it runs just fine!

 

Lots of people tune. Some are better than others. Some would not touch a car with any intake/exhaust leaks.

 

I never said I would tune a car with exhaust and intake leaks.

I'm far from a run of the mill tuner.

 

lol...

 

So my gto is doing the same thing when I push the clutch in to stop it wants to idle wierd and die.
I do have a o2 thats stripped and leaking (im replacing tommorrow btw) but anyways when the check engine light comes on and off we put it on a programmer and it said lean bank 1 and rich bank 2???
Do you think it could be the o2 causing this? or the tune?