i have a gsr its stilll obd0 it idleall diffrent all the time normally wants to stall . when i rev it and let go the gas it stalls or all most stalls i did the idle set screw settin it for ran good for like 20 min idle really good rev up good thought i fixed it then i reved it again and the problems started again i changed iacv didnt do nuttin there no engine codes i thought maybe it was cuz i was runnin a chipped pr3 but i changed to a virgin pw0 and same thing timing is good and some times it will flood it but not all the time plz help some body help

 

check the dizzy cap/rotor...if the rotor is loose it'll act that way...
is it throwing any codes?

 

no codes at all on either ecu