2004 impala 3.4l pcm tuner

[SappySE107]

With tuning, you shouldn't have a problem with emissions related codes (and I am not talking about turning them off either). Headers won't hurt, but the high flow cat might. Very doubtful on that either but it really depends on what kind of testing they do.

[ninjaguinea]

ok heres the deal, i am going to buy the 63mm thottle body. what i need to know
is should i take off the old one, put them on a bench side by side and systematcally transfer the parts one for one. is there any thing i should know like holy sh*t spings or anything like that.

[SappySE107]

Never heard of a 63mm TB for these engines.

[ninjaguinea]

oh, i cant get a larger throttle body for my 3.4 impala?
man that bites.

[Weatheralls Auto]

You can, either a 62mm or a 65mm, go with the 65mm for your 3400.

[ninjaguinea]

oh thats great. 65mm. ok good.
thanks. i am new at this , and i am shooting questions to anyone who will listen.

[ninjaguinea]

i am interested in purchasing an hp tuner for my 2004 3.4l impala
Ben from WOT mentioned they sell them. does anyone have the manual in pdf format that i can
study to try to wrap my head around all the things involved.

[SappySE107]

http://www.hptuners.com/forum/showthread.php?t=14425

There is no pdf or manual for the HPTuner but there are some posts and links that might help.

[DefEddie]

If you want to learn to tune,first learn to diagnose.
Once you understand the OBDII system and can diagnose it,it'll be alot easier to understand how to tune and modify it.

The most common thing I see with most people getting into tuning is they haven't a clue how to diagnose. Everytime there is a problem they look at the tune.

I would suggest getting into it if your really into cars though,it's fun and you learn a buttload about engine dynamics,combustion,exhaust,intake theory and all sorts of fun stuff like ideal gas law etc..
Just don't expect it to be quick,cheap or easy lol.