Lexus RX 330 Banks 1&2 too lean code

[SC Maintenance]

I have never had a VSC or other light in my Nissans when there is an engine / emission code. Nada. Its plenty complex - VSC, hill start assist, hill descent assist, ABLS. So I am not sure why it should need to?

 

[14Accent]

It was a stationary test.

I then took the vehicle on a freeway run. Values hovered around -4% with no load.

Weird thing is I saw some extreme spikes. Like up 14% for a split second.

Something I failed to mention is I had this same exact code 8 months ago. I couldn’t figure it out, so I reset the code and didn’t see anything until now.

The code is triggered at the same time as the VSC light, vehicle stability control light I think it’s called. Could they be linked? The VSC light came on this recent time also.

Did you check the intake boots yet, like I mentioned?

 

[Kurtatron]

Did you check the intake boots yet, like I mentioned?

I’m getting a smoke machine to check leaks today.

 

[14Accent]

I’m getting a smoke machine to check leaks today.

Fair enough, but unnecessary. Many times the smoke machine won't show leaks when the engine is stationary, as the accordion boots stretch and flex while the engine is in use.

The best best it to remove all the plumbing between the air box and throttle body and physically inspect the tubes. Takes 5 minutes to removed the 3 clamps and take a look.