Can Someone Help Me

I have a 1991 Honda Accord, ive got a h22 VTec, headers, full exaust, intake I got the computer chipped and a Vtec Controller.
About a month ago I got I tuned and got the VTec controller adjusted and thrown on the dyno came up to 231hp ..
im now having problems with it and i was wandering if anyone could hepl me figure out what was wrong with it..

It lost allot of power, It used to red line at 8.5 now it red lines at 6 .
when im sittin at idle the rpms are up and down between 1.5 and 800 also when i am comming to a stop the rpms stick at 1.7 until i come to a complete stop then up and down... the exsuast sounds different than it was(almost silent)

CAN SOMEONE HELP

I am not familiar if the H22 is the original engine or is that a swap in your accord there?

anyways, I assume here are your problems from what you mentioned:

I got the computer chipped and a Vtec Controller.
About a month ago I got I tuned and got the VTec controller adjusted

what kind of chip? (please be detail)

who tuned the engine?

was the car run fine after those modifications? if so how long after the problem starts to occur?

I have a 1991 Honda Accord, ive got a h22 VTec, headers, full exaust, intake I got the computer chipped and a Vtec Controller.
About a month ago I got I tuned and got the VTec controller adjusted and thrown on the dyno came up to 231hp ..
im now having problems with it and i was wandering if anyone could hepl me figure out what was wrong with it..

It lost allot of power, It used to red line at 8.5 now it red lines at 6 .
when im sittin at idle the rpms are up and down between 1.5 and 800 also when i am comming to a stop the rpms stick at 1.7 until i come to a complete stop then up and down... the exsuast sounds different than it was(almost silent)

CAN SOMEONE HELP

YEP..REVING TO RED LINE 8.5K RPM CAUSES ENGINE INTERNAL DAMAGE ...YOUR ENGINE IS NOT DESIGN TO REV THAT HIGH...

any engine codes ?