I have an 88 chevy caprice fuel injection need to know why i'm not picking up speed when I push the Gas?

Question

what can the problem be ??? I already replaced the fuel pump.

Answer 1

throttle position sensor? maybe change it and see if not then take it off wrap it up and send it back to autozone like you never touched it

Answer 2

OR the gas pump probably the gas pump

Answer 3

this will b cheap to try   put on a new fuel filter

Answer 4

Injectors are fowled.

Answer 5

the injectors need be replaced. very nice car old scool but a classic hope it gets going proper for ya

Answer 6

You should try to put a new air filter in it, or maybe yourtires are at a low PSI. maybe your engine isnt getting clean oil, try an oil change.

Answer 7

you get good fuel psi?  have you checked the psi regulator?

Answer 8

you need a little bit more detail, when you press on the gas does it kick and sputter? does it stall? Or is this while you are already moving or sitting still? It could be a number of things, timing, bad spark plugs and wires, cap and rotor, clogged air filter, even a bad O2 sensor if it has the true Fuel Injection.  

Answer 9

Does it have a catalytic converter? I just bought a 99 monte carlo, but before I picked it up they were having a heck of a time figuring out why they had to keep the gas on the floor just to do maintain 60mph. Turns out the catalytic converter was bad.