[stickfigure]

I have 2001 frontier it starts and runs fine...I will be going down the road and it will just stall. No sputtering or anything it is like you just turn the key off. Sometimes it will start right up, other times it takes a while. I changed the fuel filter thinking that was the problem, It wasn't.It is sitting at my mechanics. He thinks it might be the fuel pump. It isn't throwing any codes. I don't want to put a fuel pump in it and find out it is something else (IPDM).
Just wondering if anyone has had a similar problem...