I have a 96 DX that has a swapped 98 EX motor. The last thing done to it was switching out the ecu. I finally got an EX (p2p) ecu to complete the swap. Now when driving it, it feels like I hit the rev limiter at 5k. Car bogs at 5k and will not go past that rpm. With the DX ecu, it runs fine all the way to 6.7k or so until it cuts off.

I've posted this in other forums but need more answers -

I previously changed to an EX intake manifold but made sure I had the 240cc injectors w/ the replacement of the new ecu. The only thing not currently hooked up is the vtec solenoid. I got the new ecu for the purpose of hooking up vtec.

The ecu was purchased off ebay so could this problem be because of a faulty ecu? I don't have access to a working EX ecu. If ecu was bad, how can I tell? Also, could the problem be because vtec isn't hooked up? I'm lost...

Last question: What performance gains will I see between the EX and DX ecu's not taking into account vtec?

Please help lost soul--

 

Anytime you change a non vtec to vtec ecu you have to ad wires and or sensor that the dx does not have , in this case the vtec solenoid and the oil pressure sensor for vtec (is the one under the solenoid) , if its left not connected it will feel like a revlimiter like the problem that you are having....good luck finishing the swap