Transmission not wanting to shift with fast take off ,check engine light is on, seems to work ok with slow take off.

moved you to SENTRA.
how slow is slow 5mph, 25, 50mph 100?(lol)
one of he most made cars on earth is this , modern.
running on the road, ! still. vast . and well known and easy to fix.
Ok, there are 2 macro causes here.

1. engine weak.
2. or transmission slips or will not up-shift 1,2,3,4 gears

#1 has vast causes micro view, bad fuel, bad spark or weak fuel pressure and caused weak injections and low engine power

if the transmission bad, the RPM of he engine goes real high but MPH not so high. (per you yes)
check fuse first
then get the car serviced, if still bad.

RPM high means (no tachometer in dash) means hear the engine spin up fast even screams.
the clear proof of transmission failure. (shifter in D )

Sounds like a failing fuel pump or injector. Have a compression test done on the pump. Any shop should be able test this.

Sounds like you have a shift control problem, either in the transmission or the ECM controlling it. Check for trouble codes (DTCs) with a good code reader.

Sounds like you have a torque convertor not engaging correctly. The may have installed a defective one.

SCAN VECHICLE CHECK FOR TORQUE CONVERTER FAULT OR TRANSMISSION FLUID PRESSURE SOIENOID. CODE.AND CHECK TRANSMISSION FLUID LEVEL

I suggest you take it back to whoever did your transmission.

do a code search check codes on yahoo also go to youtube and finde code search vid

The fast idle valve is inside the throttle body. Sometimes it backs out and needs turned back in (it's threaded). This will cause the loping idle.

Get transmission filter changed with new fluid. Honda does not recommend transmission flushing.

It's the transmission computer.Is located under the front carpet on the passenger side.
I had the same problem.

Take care

Carlos Bentancor
[email protected]

transmission fluid low, check engine light coming on because transmission overheating.