okay i have a 1993 honda civic del sol my question is my car seems like it red lines at 1500 rpm when u just tap the gas but when you floor it the rpms go up with no problem would like to know what could it be

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Sounds like the throttle is sticking.

1. Verify that the cooling system is full of coolant and there is no air in it.

2. Remove the air boot from the throttle body and cover the throttle body with something that will stop the airflow (your hand, tape) with the engine running. With the throttle body covered and no air going into the engine, the engine should stall. If the engine does not stall, look for a vacuum leak.

3. With the engine running and the coolant temperature above 90 degrees F, verify that there is no vacuum on the lower port in the throttle body. If it does not lose vacuum, look for a faulty fast idle valve on the bottom of the throttle body, as long as the coolant hose is good and hot.

4. Verify that the base idle screw was not turned way out on the top of the throttle body. If it was, set the base idle and see if the problem still occurs.

5. The upper port in front of the throttle plates feeds the Idle Air Control (IAC) valve and the base idle screw. If the IAC is unplugged and the base idle screw is turned all the way in and there is still airflow through the upper port, check for a stuck open IAC valve.