I have a question. Whenever I am stopped and go to take off fast sometimes the car will hesitate for a couple of seconds and then take off. Also when im on the freeway and go to punch it sometimes it hesitates. I have a new autozone fuel pump and filter. top gun chip. K&N cone on turbo. New gm plugs. Could my coils be weak? or something wrong with the turbo?
Carl
You know you have good fuel, you have good air, Id check my wires & coils.
I had the same exact problem. Replaced a bad coil pack and car runs perfect.
Hope this helps.
NitroDAVE
Did your car run and drive otherwise ok before u put the coil on? My car idles great and drives fine, it just chugs when i go to stick it sometimes. Im thinking a weak coil or weak injector.
Thats exactly what mine was doing. At first it started out as a very slight miss when I punched the gas and it just got progressively worse.
The way I figured out it was a coil was remove one spark plug wire at a time from the coil and keep it about an inch away from the plug wire post and started the car to see if was sparking. Mine was so bad the middle coil wasn't even firing! (Which in turn gave me really crappy gas mileage. I was getting about 130 miles per tank)
Most of the time if it's a coil "just starting" to go out, it will run fine on initial start up (when cold) and as the motor heats up it will get worse. If I were you I'd try to find the bad coil and replace it before messing with the injectors. I think the injectors are a little more money and a little bit harder to change out.
You could also try punching it before and after it heats up. If it don't do it cold, but does it hot, I would think its a coil.
Hope this helps....
If you need any more info, just give me a shout and I'll do the best I can.
I just got my TGP a few weeks ago so by no means am I an expert.
thats for your help. Im going to check the coils, when i get a second. Seems like everything has been going to fast for me sense christmas.