93' olds cutlass ciera s help

Hello I've been having a stalling problem with my olds so I went down to my local napa and asked them about it. they said it was the ECM main relay,and they sold me one ..now my problem is i dont know where on the car the relay is. Any help would be welcome thanks

Hello I've been having a stalling problem with my olds so I went down to my local napa and asked them about it. they said it was the ECM main relay,and they sold me one ..now my problem is i dont know where on the car the relay is. Any help would be welcome thanks
Napa does diagnosis?? There are a multitude of reasons for stalling, all of which need to be checked out, main relay for efi on that car escapes me, may be another name for it?, and how did they arrive at that? BTW, welcome to AF.