The "cold start fuel injection switch" is on the left (towards the back window) of the thermostat housing. The cooling fan switch is right behind it. They both are perpendicular to the intake manifold. The sensor (with bushing) above the waterpump is the coolant temperature sensor for the ECM. It is parallel to the intake manifold. The sensor for the temperature gauge is in the right (closest to the trunk) head on the back of the head, by the coil.
From: Scott Backer
__________________
| |
| _____ __ |
_____ ____|__| | | | |___|
| | \ | | | | | O|
|_____|___ \_| | |_/ | o |=1 _
U U \ | __| | |
1 2 \ Fiero |/ \ /|E|
C=|\_ _ |\__///|_|
| | / | | | |/
|__| | | | |]__|
| |__| |__|__| |
| () |
c=|__________________|
U1 : TPS (side of throttle body, above IAC valve)
U2 : IAC valve (side of throttle body, below TPS)
c= : temp gauge sender (side of head, under coil)
C= : cold start injector (side of intake manifold, under distributor)
o : cold start injector switch (top of intake manifold)
O : coolant fan switch (top of intake manifold)
=1 : coolant temp sensor - ECM (side of intake manifold)
E : EGR solenoid (cylinder below/next to thermostat housing)
] : MAP sensor (next to plenum)
() : PCV Valve (top of rocker arm cover)
From: Sketch