Hi Eric, fantastic video and nice job by the way. 🙂
I have also a 97 Nissan Cefiro, I don’t know if you have them in the state. Its a 2.0 24V V6 engine AT.
I’m in the Philippines by the way.:)
My question is, I also have a performance issues with my car. Every time you put it to drive the rpm will drop slightly like the engine will stall. I tried adjusting the idle from the idle cable just to fix this. But the rpm range will go above 1000 rpm. When you put it back to N. Then when I saw your video I was thinking that probably we might have the same problem as the Nissan altima. I have 125k plus on my mileage.
Things that we already fixed with the engine:
1. Check spark plug but its ok, but we eventually bought a brand new one just for the sake of it. Its NGK.
2. We also cleaned the knock sensor like you did in the altima but still the same.
3. We also change the high tension wire to a brand new one.
4. The only thing we did not check its the code if where having any misfire?
But when we rev it the idle will normalize, as just you said in the video.