ok thanks would a vac leak cause drops at specific times liek that or is that most likely a IAC problem?
Any time you have unmetered air entering the engine and the load changes, odd behavior will occur. You need to fix the vac leak before you can trouble shoot something else.
2004 Impala LS - got some mods sold!!!
2009 Subaru Impreza WRX STI
NAIOA moderator Still Imp'n, just in a different Imp.