I own a 95 honda accord ex. After blowing my motor I bought a engine from a 97 honda accord ex vtec.I also changed my ecu becuse my old one was burned out.I tried to find an ecu with the same #'s as my origal one at wrecking yards but could not,so I ended up buying one from a wrecking yard after they told me there computer said it was a replacement for mine and that it would work for my motor.Now this motor is newer then my old one but I cant get the rpms past 5000 before I could go to 6000 maybe more I dont remember esacly.I was thinking it was the ecu beause my friend has a 98 accord vtec and his rpm doesnt go past 5000 eiter.Can someone please help me and tell me why I cant go past 5000rpm?Or what else can it be .Bye the way my friend and I both have at's

 

it sounds to me like someone sold you the wrong ecu.

 

or improper motor installation. Or both together, are you getting any codes?

 

yea i got the code for cylinder #1 position. i dont know what that means can someone help?

 

I'm with Evlamp on this. Check the ecu code. That 98 vtec should rev to about 6500. The computer is reading something wrong and limiting it for a reason. I don't think any F22's rev to only 5k.