Sometime engine misses

[ggenovez]

Hi all,

I have an interesting problem. I can feel the engine mssing sometimes. I'll come up to a red light and all of a sudden the rpms drop a bit and it feels rough, then it will normalize then miss, and back and forth.

I've changed plugs, wires, rotor and cap.

Any ideas?

[Desert Rat]

year / model/ engine?

Any codes?

[ggenovez]

Oh c'mon. Can't you read my mind

Yeah, I'm an idiot.

ok it's a 2001 Xterra 3.3 2WD.

Only code is about the knock sensor.