i am haveing a problem with my car that i cannot figure out. heres what i have - redtop sr20 with 300zx maf controled by safc computer. and heres what its doing...
when the maf is hooked up the car will start but the rpms jump around, it sputters, then dies. it is almost like there is a husge vaccume leak or something.

when the maf is disconnected the car starts and runs almost like normal just in the safe mode with 2.5k RPM rev limit, and it isnt very drivable.

tonight i was messing with it and i hooked the maf to it with it not conected to the airway and it ran fine like normal. when i reconnected it to the turbno it acted up again.

i bought a new MAF for it thinking that would solve the problem. the new maf that i bought is a jecs type N62 with the orange lable on the side. the old maf does not have the orange lable. it only has a silver lable with a series of numbers.

could the new maf i bought be the wrong type?

ps. im not replacing a stock MAF with a 300zx. i have had a z32 maf on the car running and now im having these problems.