First of all it's a automatc transmission. My car is running rough on drive and reverse while I'm on a stop. And when I'm in neutral it don't run rough but idle is alittle higher then normal. Like around 1,300 rpm. I just checked the light code and it gave me 7 long flash. And 7 long flashes mean 70 is the code. I checked it and it means auto trans. Is that right? I need to change my auto trans? I don't want to go all that trouble and it not the trans. ANYONE HAD THIS PROBLEM BEFORE. REALLY NEED HELP. THANKS!

 

I would simply try setting your idle lower... It sounds like your car is putting too much torque on the transmission when you're at a stop, and that would also explain why it would idle higher when there's no load on it. The code may be thrown because there is too much load on the tranny at idle... But then again, I don't drive an auto so I don't know for sure