Rough idle and a few other issues (moved)

[dantheduke1]

I log in and it still won't let me post. Please move if possible..

I have a 1990 300zx n/a. I've boiled out the gas tank, new fuel pump, new fuel regulator, fuel filter, stock injectors, new mass airflow. The car is stock. I have a rough idle and some times it tops out at 2500 rpm. I have tried 2 other MAS's thinking thats the problem. IDEAS? I have this weekend off and would love to make some headways. Sensors, wires, anything. Owned the car since January and put 300 miles on it. Need to get it on the road. Dantheduke1

[mtcookson]

Moved from VG/VE forum for member, couldn't post here for some reason. Getting looked in to.

[MaximA32]

Could possibly be a spark problem. When a car runs like that it's usually one of three things:fuel, air or spark. Since you already ruled out fuel and air, logically, it could be spark. Check all your spark plugs, wires and coils.

[evildky]

PTU? deal coil packs? have you checked the codes?

[nsrZ32]

wires

Not on a Z32 pal.