1987
no
Yes. A 2004 Jeep has fuel injection.
Carburetor, mechanical fuel injection, throttle body electronic fuel injection, ported electronic fuel injection,
Yes, its throttle body.
Yes, It is a mechanical fuel injection system with an injector pump to pump fuel to the injectors.
Renix TBI
Yes
The first year fuel injection was in the Wrangler form the factory was 1991 for the 4.oL. The 4 cylinder initially was a throttle body then multiport later, but I do nto remember what years those happened. When I was looking for the one I have now, the blogs about carb problems is what prompted me to determine 1991 was the oldest I would buy. I did used & still have it 10 years later.
Fuel injection pump
it should be either on the top of block or fuel injection
No, they had an electrical fuel pump located in the tank.
Yes, make sure it has the pin where the mechanical pump goes.