Thread: purring problem

taking the car out for the new test drive after i installed a wai and its acting funny. ITs seriously purrs under low rpm but then when i get on it it feels like it is hesitating!! Bad fuel injector? idk whats going wrong and its back firing a lot now(more then usual). I changed maf but its still a sr20ve maf that i swapped. any ideas if need i will take a video soon.

sounds like an un-metered air issue..

possible fixed, i bumped my tps sensor. it was all the way up to 1.6v around there. dropped it back down to .42 and average at idle and the great is great