91 NX2000 Emission Help

Well the car is already in top shape… maybe not emission wise, but which older car is, LOL. I understand the fact that I am new, well on this board, as I just learned about its existence. All I am asking for is a little pointer to get to those places, and your help will be greatly appreciated - you got to share the wisdom right? That’s why this forum exists right? I would like to get to know you guys more before I ask for such favor but frankly I need the car on the road yesterday…

Thanks.