my 1998 jeep cherokee misfire/ sputters on acceleration abouve 2000rpm

also if you rev from under hood slowly you will see engine skip and shack every few seconds.

new wires plugs cap button coil

had a code that said that either timing was of or crankshaft senser was not installed proper i cleaned all connections under hood no vacume leak

have been told it was a nuber of problems need help asap