I need advice about this issue; I have a 95 Accord EX auto tranny. When I need to speed up, hitting the gas firmly, after 3500 RPM the car becomes powerless; the RPM just increases but without torque response; then after a long way to 6000 RPM it shifts strongly rough. No CEL codes at all. Could it be my auto tranny or something like torque converter or VTEC engagement? It’s strange because sometimes when I hit the gas the tranny responds so well and the car speeds up with a lot of torque and shifts smoothly without signs of problem.

So far the Auto shop did a complete engine maintenance check up; I´ve replaced spark plugs and wires, all oils, gaskets, piston rings, bearings, vacuum hoses, air filter and timing belt. All sensors and valves cleaned and in good working condition.

There is only a couple of things to do like replacing the rear engine mount and to check a small oil leakage in the distributor, but I don’t think they´re causing the problem.

I need help on this; Anny suggestions?