ok so im thinking that my cars running problem at idle is the fact tht my b20 b is running with a p 75 ecu......so can some1 give me some reccomendations on what ecu would be the best for my car.....its a b20 b with either a ls or gsr tranny cant find a stamping and it has a running issue at idle so can someone help me out with an ecu idea???

 

a chipped ecu with a basemap for that motor.