General CTS Vsport Thread
Re: General CTS Vsport Thread
You really need to verify that it does an enhanced or OEM specific stream. I did not look into that
Re: General CTS Vsport Thread
Also, $18 mail in rebate from AC Delco - $20 net for a new set of Iridium plugs - not bad at all!Bob wrote:New plugs ordered. $38 at Advance Auto after coupon code
Re: General CTS Vsport Thread
I did a brief blast with the Bluedriver installed. Fuel trims seem to go to zero and stay there at WOT, which I guess is a good sign. Need to look at timing next.
Re: General CTS Vsport Thread
Whoa! It’s been a long time since I’ve updated this thread. I ended up having an issue with misfiring in high boost high load situations that started happening sometime late last year. Replaced all 6 coils today and the car seems to be better. It also seems to idle smoother and be more responsive in general. I need to do some highway pulls to confirm the issue is gone.
I also pulled all the plugs and checked them and they looked good.
I also pulled all the plugs and checked them and they looked good.
Re: General CTS Vsport Thread
Just ordered two new wastegate solenoids to eliminate the post shutdown buzzing noise that is common with the Vsport. Also, these may help make boost more consistent, though I haven't noticed any major issues.
Re: General CTS Vsport Thread
The car now has no noticeable black smoke at a WOT take off in first and it pulls harder and struggles for traction. I wish I hadn't let the coils sit in the garage for 2 months because of no time to install.
Re: General CTS Vsport Thread
We call that the parts funnel.
Re: General CTS Vsport Thread
I installed the wastegate actuators yesterday. The most important thing is the shutdown hum is gone. Also, it seems to be quicker to build boost at part throttle in the lower gears. Overall, it's been a good couple weeks of Vsport maintenance.
Re: General CTS Vsport Thread
Any pics of anything? This is a repair forum after all...allegedly. Brief time/materials description...
Re: General CTS Vsport Thread
I took no pictures, but I used the following videos:
Wastegate solenoids: https://www.youtube.com/watch?v=dDTEHJVe-F4
Coils/plugs: https://www.youtube.com/watch?v=aysijIIfIDg
Wastegate solenoids: https://www.youtube.com/watch?v=dDTEHJVe-F4
Coils/plugs: https://www.youtube.com/watch?v=aysijIIfIDg