I just changed the throttle body gasket on a 1998 honda accord now when I turned the car back on it idles rough and when I give it gas above 2000 rpm it drops back to 1000.

. Clean throttle plate and throttle body.

. Clean Idle Air Control Valve (IACV) and upper and lower ports:

https://www.askmehelpdesk.com/cars-t...ml#post1054149

Ensure the problem is not related to a failing Ignition Control Module (ICM). If the problem persists, change the ICM and coil:

https://www.askmehelpdesk.com/cars-t...tml#post265896

This link may offer perspective:

https://www.askmehelpdesk.com/cars-t...tml#post260436

I figured it out. When I put it all back togeather I accidentally put the map connector on the tps sensor and the tps connector on the map sensor. Thanks for your help though.