When i was driving my car start to loose power and i have to down shift to keep it alive and then power came back and it was fine . Please tell me what it is

 

learn to test your ignition components, sooner or later most go bad.

http://www.team-integra.net/forum/bl...eshooting.html

http://techauto.awardspace.com/ignition.html

my guess is coil, if the tach goes crazy then icm.
fuel pump is also a possibility, just grab this as you'll need it eventually:

http://www.rockauto.com/catalog/more...290&cc=1000382

or get the denso pump if you can afford another $50.

 

The tach does not go crazy and just put a walbro 255 in it