I have a 1994 honda civic 1.5 lt dx 5 speed.... i have changed the fuel punp, coil, distrbutor cap a rotor.. car is running , but rough an some popping an wont get up to speed... what esle can a look into ...

It seems your ignition switch has burned out - verifying good starter operation was an important component in furthering your diagnosis effort. The ignition switch is really a relay separate from the ignition key cylinder - when it fails to send battery voltage to the starter motor, you'll have the no-start condition described.
See the Honda Ignition switch replacement illustration below.

Just for completeness' sake, here's the generic response of a mechanic to a vehicle's no-start condition:

Priority Action Part Type Cause
1 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch.
2 Inspect Battery - Battery Discharged or Faulty.
3 Inspect Battery Cable - Coroded, Broken, Shorted or Poorly Connected Battery Cable.
4 Inspect Solenoid - Starter Solenoid Faulty.
5 Inspect Starter - Starter Motor Faulty.
6 Inspect Wireset - Worn or Damaged Spark Plug Wires.
7 Inspect Ignition Coil - Faulty Ignition Coil.
8 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap.
9 Inspect Spark Plug - Incorrectly Gapped or Fouled Spark Plug(s).
10 Inspect Distributor Rotor - Loose, Cracked or Worn Distributor Rotor.
11 Inspect Fuel Tank - Fuel Tank Empty.
12 Inspect Carburetor - Worn, Faulty or Damaged Carburetor.
13 Inspect Fuel Pump - Faulty Fuel Pump.
14 Inspect Choke - Stuck or Improperly Functioning Choke.
15 Inspect Fuel Filter - Clogged or Dirty Fuel Filter.
16 Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
17 Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
18 Inspect Fuel Pump - Low Fuel Pressure.
19 Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
20 Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.

Illustration courtesy honda-tech.com (from 1994 Honda Civic EX manual).

http://honda-tech.com/showthread.php?t=2577784

REPLACE DISTRIBUTOR CAP AND ROTOR.AND PLUGS WIRES.IF GETTING NO SPARK TO PLUGS.CHECK SEE IF IGNITION COIL GETTING POWER.IF NOT CHECK IGNITION FUSE.IF POWER GOING TO COIL.FAULT EITHER COIL IS OPEN OR FAULT IN THE IGNITION MODULE IN THE DISTRIBUTOR.

catalytic converter

POSSIBLE distributor cap and rotor spark plug wires

Honda had a recall on the distributor itself they dont cover them any more. they are bad about going out i think its just the pick up that goes bad but you have to replace has a unit

check the distributor/cap and starter

Check for split hose's around the inlet manifold.Sounds like a vacuum leak.
Hope this helps.

The cap should be marked for number 1. The distributor turns clockwise. The firing order is 1-3-4-2.

bro, check ur main relay. its under the dash. replace it, check also ur distributor(replace it). and also your ECU

Try pounding on the gas tank with a rubber mallet or similar tool. (careful not to dent the tank) Try starting it. If it runs, replace the fuel pump (it's nfg). I've diagnosed numerous fuel pumps this way. Remember the pump needs to be replaced, if you drive it, you don't know when it'll fail for good. Hope this helps. Please post the results.