Missing vac components? P0171 (1 Viewer)

[fe sus]

My new '99 LX470 threw a CEL code P0171. I looked up common fixes, then while waiting for the PCV valve and ignition boots to arrive it went away... then came back.


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I just swapped the PCV valve which looked pretty bad and noticed something was missing on top of the engine. What is missing?

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Also looks like a vac line is missing in another location...

Imgur: The magic of the Internet

 

[2001LC]

Yours is there lying just below other. Cant see end in your picture.

Sometimes those little bug/dust suppressor are missing. Dealer parts department may be able to order. Or get one from a parts/salvage rig

Usually good idea to replace that rubber grommet PN# 90480-18001 with those 98-02 year PCV valves.

 

[2001LC]

BTW: Check your air filter & clean MAF sensor

 

[fe sus]

Thanks. I swapped the grommet as well. It was toast. Located the line hidden under the other and reconnected, cleared code... for now. Going for a drive to see if it returns, then I'll clean the MAF and swap the air filter. Cheers.

 

[2001LC]

Tip: Disconnect battery to start your air filter & MAF cleaning. Then clean and grease battery post and reconnect last thing. Disconnecting battery for 30 minutes is key, as this reset ECU.

 

[fe sus]

I disconnected the battery to reset the CEL but only for a few minutes. All seems to be functioning properly right now.