240 idling low

[mikenissan08]

so my car is bouncing at 500 rpms sometimes it cuts off when im deccelerating. i just changed my intake and i lost the little clip that goes on the maf sensor. when i disconnect the maf sensor it idles at about 1300. i sprayed some maf sensor cleaner and some throttle body cleaner into my car but still no constant idle. should i change my maf? i'm thinking about getting the 300zx maf, but i want to make sure that it'll cure my problem

[GhostDriver]

Vacuum lines maybe?