I'm not sure what you mean by a "fuel injection valve". There are six fuel injectors, mounted into the lower intake manifold, attached to fuel rails. Only the front 3 are really visible.
On the EGR valve assembly.
Top of the throttle body.
On the top of the manafold.Itd literally under the windshield.
They are mostly identical, yes.
What is the fuel tank capacity of a 1997 Mercury Villager van?
In my Experience the egr value is located on top of the intake near the tpi unit.
According to the 1997 Mercury Villager Owner Guide : ( 20.0 US. gallons )
what is the spark plugs firing order for a mercury villager 1997
yes
The Villager does not use fusible links that I am aware.
There is no such device on a '97 villager.
You need to ask a complete question.