I have replaced cap, rotor, coil, wires, plugs, o2, throttle body, cat, muffler, intake, map sens., idle control valve, fuel pump, fuel filter, fuel injectors, STILL NO FIX AND NO CODES. PLEASE HELP!! I WANT TO BURN IT TO THE GROUND

 

NO codes means its not an electrical problem most likely. Must me mechanical. Check your compression. Is it all the time, at a certian rpm range, or at a certian speed??

 

has good compression and it is hard to say when it will happen cold hot long drives short drives doesnt matter its intermitent

 

You might want to troubleshoot the EGR system, if you have one.

 

most of the time the car runs like new and i dont think it has an egr valve

 

A faulty CKP sensor and valve clearance out of spec are some other possibilities.

 

CKP has been a thought of mine but i think it would have thrown a code

 

I took it to the honda certified dealer and they cant figure this thing out. cost me a day with no car and cash i didnt need to spend


Modified by mrnorm at 6:05 PM 4/10/2008

 

have you checkaed all the engine grounds? mainly the one on the thermostat housing?

 

Check your valve lash clearance, and the adjustments on the t/b (idle and the allen screw below the butterfly cam where the throttle cable hooks to)