90 300zx na tt rough idle and on power

[pauld90]

I have a 90 300zx na tt auto it has a really bad idle and no power it drives but top speed is 60 on flatland any hill u hit no matter the size it will lose speed. if u come to a stop the car will die if u don't have your foot on the gas, the owners before said it ran great. they had a friend do a tune up for them. new plugs wires and oil, when they got it back is when it started the idle and no power problem. I have driven the car maybe 10 mins, never been In one before that. I noticed the oil pressure was 0 when idle and went up to 60 when I floored it. im hoping the wires where crossed or the wires are not on all the way. what do u guys think

[ZL8NING]

It is possible that the cheap plugs from the autoparts store were used. Check to make sure that those are the genuine NGK's from Nissan. Plug gapping is also critical. The plugs have to be OEM, and gapped right. Start there.

[Rubyz32]

I have the same exact issues. I'm nearly 2k into this dam thing and I still have nothing. My engine compression is damn near perfect and I have replaced nearly everything aside from the fuel rail and ecu. Have you checked your compression? Balance test? What have you done so far? Do you have an fsm? I'm curious because I'm hoping your solve might help me fix my car.

P.S. ThisissparTTa is super knowledgeable and helpful.