when im driving down the road and i get my rpms up to about 4000 my car will cut out until i left off the gas, only does this once its warmed up, when its cold it will run fine. things ive tried is replaced the vtech solenoid, replaced the pcv, cleaned the throttle body, and cleaned the egr valve i cant figure it out. anyone have any sugestions. its a 99 honda accord lx 2.3l

 

You need to check for stored codes, your car is running in limp mode right now.