My jeep Xj 2.5 manual 93 model having black smoke from exhaust and after few minutes drive need to press the gas pedal to start the engine.Is it my injector problem or injector leak problem?

 

Sounds like your injectors are leaking wile the engine is off. It also sounds like your injectors are stuck open when running. I would change them out for a nice set of new injectors.

 

Do you think my O2 sensor bad? or just my injectors. Because I can smell the fuel at the exhaust. If I press the gas pedal, the engine is misfiring. Hesitate to rev.

 

If the O2 sensor has not been changed then you should change that too. It could cause the black smoke wile running too rich, but having to step on the gas to start is a clue to a leaking injector after the engine is off. It is a way to start if the system if it flooded with gas. Any CEL on?

 

There is no code.

 

Hows the hose from the intake manifold to MAP sensor?

 

The hose all looks good.

 

Can identify the sound? Is that my lifter bad?

 

Gotta be good examine for cracks from throttle body to map senor.

 

You checked or theres just no light.

 

i checked it. only pull code 55.

 

Vacuum line to map getting vacuum when running ?