i have an ls b18a1 and i fixed the problem that the computer was throwing at me. my car turns on fine and there is no boging out. but i guess when it gets hot the rpms drop to 5k and if im driving and i come to a stop it cuts off ? and there is no engine light

 

How do your RPMs drop to 5000rpm? are you talking about rev limit or are you meaning 500RPM at idle?

 

you mean they drop to 500?? and what do you mean by it cuts off? it shuts down or the idle comes down and then up? in order to help you, you have to be specific..