first of all im SO glad i found this website. Wife'* 2005 rendzvous 3.4 dies when u turn right, not every time. When you slow down for a turn, take ur foot off the gas & turn...it dies. If you'er at a stop sign and give it gas and take off, it turns fine, no sputter, nothing. Once im goin down the rode its fine at higher speeds. Ive replaced fuel filter,PCV, and MAF sensor. I've got a new set of plug wires on order im hoping thats the problem. I got my multimeter out and starting checking things from the troubleshooting section. I checked the coils, 2 were at 6.27, the other was 6.17. Does that make the oddball one bad? its not off by alot. Buddy of mine said it could be something with a bypass on the steering rack. Not a clue about that one though. ANY ideas would be extremely helpful. Im stuck driving her car until i can get it fixed.

Welcome to the forums Curt.
When in Drive while stopped, vehicle at temp, note the rpm, and turn the wheel, does the rpm drop, if so, what is now the rpm reading while turned?
Now try the same with the A/C on any difference?
I am thinking the IAC (intake air control) could also be the problem.
I am sure our Gear head team will have further input, regarding coils & the turn/stall condition.

Thanks a million Soft Ride!!! I took the IAC off and it was dirtier than the oned in the post about how to clean it!! Followed the steps, took it out for a spin and not a sputter one!! I still have a few parts coming in im gonna put on just cuz they need it,i.e. plug wires, O2 sensors. Again, thank u, thank u!!!

You are Welcome! I am so glad I could help!
Thanks for the quick IAC work & reply!
Was this the IAC cleaning post you found from Normal Maintenance?
https://www.gmforum.com/normal-maint...800-v6-307092/

My Park Avenue has a similar issue, and I believe the issue to be in the fuel tank (baffles broken most likely). Especially when fuel is 3/8 of a tank or below, forces strong enough to pull fuel away from the fuel pickup cause the car to stall, so this can be sharp turns, hard breaking, or even a steady highway loop.

If this is to blame in your case, you will notice absolutely no problems with a full tank of gas, and the lower and lower the fuel gets, the less extreme maneuvers have to be to cause issue, until it gets low enough that the issue is observed in daily driving (about 3/8ths in my case).

No telling if this is your issue as well, but it'* easy to figure out if it is or not.