ive got a 2000 camaro z28 that has been recently dyno tuned and the car runs like crap. im not going back to the tuner so i ended up buying hp tuners. WOT is good but driveabilty is very poor.
the first min or so on a cold start the engine will not idle. when the air pump turns off it will finally idle. i always have to hold my foot on the throttle a bit to start it. if i try to start without holding it will stumble around 400rpm and eventually come up. while driving the car it pulls like it has crusie control on when i get over 30mph. when i stop it will surge and idle and sometimes die.
mods are prc 5.3 heads, ms3 cam, lt headers, 80mmtb, LID, descreen maf, green top 42lb injectors. any tips you guys have for me to get me pointed in the right direction will help.