that start few days ago, under 1200-1000 idle its look like one cylinder not working ,engine works little rough, check engine light start and got restricted performance,but when start driving restricted vanished every thing looks good ,only check engine still lighting, ive check by OBDII and show no cods ,but still work no good on low idle . Who got any idea what is this?

 

check for air leaks... from the MAF on back to the throttle body... most likely that is what it is. Its pretty common.