I don't know about the Jimmy, specifically, but the fuel sensor on most fuel injected cars are located inside the gas tank, as part of the fuel sender (pump).
The fuel pressure regulator in that 96 GMC 4.3 TBI is located in the throttle body.
it is located on the lower left side of the timing cover
Yes, it has a fuse and a relay. Look in the fuse/relay center under the hood.
Inside fuel tank,
A '96 jimmy does not have a body control module (bcm), it does, however, have an engine control module (ecm) located ontop of the coolant reservoir.
You have a problem with the EGR system, the pintle positon circuit.
i think 35mm
Hand brake? I thought the last GMC with a hand brake was in 68, but I could be wrong.
96 GMC 4.3L with CFI, 60 to 66 psi.
A 96 GMC Sierra won't stay running if the fuel filter is clogged or water is in the gas tank. Replacing the filter allows for proper fuel flow to be restored to the engine.
When owning a car, it is important to know and remember the gas tank size. The 1996 GMC Jimmy has a gas tank that holds up to 19 gallons of gas.
Probably a crossed wire or electrical short.