Hey guys I've got a 1996 impreza wrx and when i go to turn it on from cold it turns on and then the revs drop down really low but then the car recovers. But then if i try rev it abit the car sounds like its stalling again but eventually runs normally again. Anyone know why its doing this? Thanks

Assuming stock ecu, have a go at cleaning the MAF and throttle body incl the IACV.

I've tried cleaning the MAF but not that IACV so ill give that a shot tommorow. Thanks