Ok, so I was going through my manual looking for pics of the vacuum system and I came across a pic that has a "manifold absolute pressure sensor (MAP)" labeled on it. It shows it on the back passenger side of the engine bay on the fender well.

And I donÆt have one on the Amigo. So what is it, and should I have one?

Also; could my issues be a ôfuel pressure regulatorö I see that in the same pic. Is there any way to check to see if itÆs working properly?

Steve C