When I first start my car it runs perfect. And as soon as it gets to operating temp or warmed up, it hesitates on light acceleration and surges when i put it into gear. Someone told me its the oxygen sensors.. is that true?
well the problem only happens when my car is warmed up all the way. What could cause it to only happen when warmed to operating temp. I dont have time to do all that little test stuff. Can i just test my o2's with a volt meter to just check in see if they are working properly?
try replacing the engine coolant temp sensor on the passenger side. You're car is fucking up in closed loop mode...when it starts to read from the sensors. So it is a sensor somewhere. Try the coolant sensor first...its cheap. It could be the O2's also but I'd
I was having the exact same problem with my car when i first purchased it, so i took it to my brothers shop and he pulled the codes and if i remember right they were really inconclusive.(left cylinder bank running lean; open fuel pump circuit;left bank running rich his thoughts were that my O2's were shot from not having cats on the car but all we did was spray out the maf and iac with carb cleaner and now she has been runnin like a top so :dunno:. i would agree take it to a shop most places won't charge u just to pull codes
Try reseting your computer (disconnect BOTH cables and touch them together). Start the car, let it idle up to operating temp. Shut it off. turn on ALL accessories (highbeams, radio turned up, a/c fullblast, etc) and start the car again. Let it idle like that for about 2 mins. Then drive it....varying your driving style the whole time...