Originally Posted By: mechtech2
I don't think BuickGN has any problems administering an Italian Tune Up.
My poor poor TL. I did the water spray in the intake and then took it out for a spin to this neighborhood they started building years ago but ran out of money. No houses, no people, walled off from the public, only paved streets. I did about 10 minutes straight of racing myself all out.
Car idles better but it still has the high test in it so no results yet.
One thing that I had a problem with, I couldn't get the rpms to drop at all. I took a heavy duty spray bottle from work and filled it with hot water. I took the cover off of where the throttle cable actuates the DBW and held it near 2,000rpm. No matter how much water I sprayed, it made no difference. I was worried it was puddling somewhere and not getting injested so I revved it a few times at WOT and nothing. I went through about half a quart of water, hope that was enough.