Hey guys ...new to this site and would like to gets some feed back to help solve my issue.
I have the base gt 05 grand prix. The things runs like a champ when cold but when it gets up to operating temps i'll be driving and come to a red light/stop sign and itll seem like it has no power then bucks into drive very rough like someone just bump into me. Also it seems to be more of a kick in the ass and go(worse) if im driving it hard then come up to a red light. Ive done a regular tune up plugs wires ..cleaned the maf got a new used TPS and throttle body and cleaned. Ive tried un plugging the maf, o2 up front, egr valve and at seperate times. And each time code came up for each one. I do have a bluetooth odb reader and other then those coming up when unplug them i have no codes. Ive gone to the back lot of walmart and can replecate the issue only in (D) gear ....when i try it from 1st 2nd and 3rd gear shifting through each and its smoother then a babys bottem no chunky start. Stumped please help of u guys can.
Thanks
Also we have had this car since 2008 or 09and it started doing this far faaaaaar a few in between. Now for the last 6 to 12 months has been like crazy i cant leave town with out this happening.
