Have a 200 Honda accord 4 cylinder. As i go up throught the gears, starting in 3rd, approaching 3000 rpm the engine goes flat like dropping cylinders and loses power. If i let off on the gas it helps a little. Gets worse in 4th and 5th gear. Thanks for helping me out with any ideas. Plugs and wires changed w/o any difference and I seafoamed the engine also.

 

No stored codes in the ECU, correct?

How many miles? Does this only happen once the car is warm?

 

fuel filter been changed within 12k miles? distributor cap and rotor replaced yet?

 

Yes this seems to increase as the car warms up.