ok t.r my friend has a sc400 with some issues lol

the car has no power whatsoever under throttle.

the idle is the same with the maf on or off, which is the next thing we are going to change in a couple of days.

compression on all 8 cylinders is 200-212. we changed the 02 sensors as well, my big concern here is that the maf costs 400 bucks..... if that doesn't work, what would be the next step. He wants to get rid of it if that doesn't fix, and i am going to pick it up if he does, so any tips would be great. thanks

 

idle rough? rev freely? Check coil packs.

 

dont start throwing parts at it. id bet it isnt the maf. it should idle with it unplugged. do you have any engine codes? if you unplugged the maf while it as running then you should. if you dont, id bet the ecu is the prob. reset the ecu. start it and drive. if the engine light comes on, stop, and check the engine codes and then tell us what they are. thats how you will find the problem.