PO401 and EGR/air intake manifold with pictures

[BillyGoatMTB]

Can someone help me identify what part is #5 in the first picture of the intake manifold. I noticed that mine is broken and was wondering if it is causing the P0401. Thanks.View attachment 3867375

This?

Part number is based on my 1997 FZJ80

 

[Zingarone]

Yes, it seems to be it. I have a 1996 FZJ80. I can't believe I couldn't figure it out. Could this be triggering the p0401?

 

[BTLSHP]

Yes, it seems to be it. I have a 1996 FZJ80. I can't believe I couldn't figure it out. Could this be triggering the p0401?

The only correct answer is could be, but not on the top 10 list. I recently went though this the hard way - chasing every idea in random order and missing a lot. EG-180 of the FSM should be your guide. Initially, I cheated on the VSV test and simply pulled the connector to test it electrically. Replacing the VSV because it could not hold a vacuum was the last step I took to clear the light. In between? The TB ports were completely caked up and impassable an the EGR valve pintle was sticking. Along the way? I replaced every vacuum hose.

It is not a fun one.

 

[Zingarone]

After resetting the codes and driving 50+ miles on surface streets, the scanner still showed the CAT and EGR as INC. Drove on the freeway and after 20+/- miles the CEL went on and it was the P0401 that came back. Unfortunately the smog check in CA allows only one INC. Will have to invest a little to get the EGR resolved. Can anyone recommend someone that could do this job in the Los Angeles area at a reasonable price? Thanks.