This problem is driving me crazy and causing a lot of stress with my family. I need some help!
I have a 2002 Xterra 3.3 V6 non SC
It idles rough. The RPMS bounce around a lot when in Drive (in N or P it idles smoother with the higher RPMS). As you sit at a red light, it will shake badly and then smooth out perfectly.. then start shaking again.
Also, while driving it will misfire and the service engine soon light will blink. It looses lots of power and slows down. It has yet to completely stall.
I have a Knock sensor code, Random/Multiple Cylinder Misfire, and it changes between a "too rich" and "too lean" code.
I have replaced all spark plugs and wires. I changed the timing belt. I changed the entire distributor. The problem still exists as it did in the start.
I have read many other posts about similar problems, and just about all of them ended with spark plugs or distributor. I need help yall! Any ideas? Thanks in advance.