Need assistance identifying missing hose on throttle body

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Joined
Oct 8, 2025
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Location
Utah, USA
Can anyone help identify the host that is capped? I'm having trouble finding it on partsouq. This is on a 1996 LX 450.

IMG_8118.webp
 
Both my '94 and '95 look like @80serie's throttle body. Hard to believe that the Lexus engines had their own throttle bodies, but I guess anything's possible. I assume you used you VIN with the EPC? Maybe someone with an LX450 will chime in...paging @JohnVee
 
@whitecollarplumr : Can you remove the ? plug/cap and take a couple more photos of your throttle body, maybe one from the top looking down,
one from the side to better show the ports and hoses on the top of the TB.

AFAIK all 95-97 FZJ80 and 96-97 LX450 US models should use the 22210-66031, and that TB should be backwards compatible to the earlier models that used the 22210-66030.

See image below, TB from a 1993 FZJ80 for comparison to the other photos above ie: all top ports/pipes appear the same to later model TB's:

FZJ80 1993 Throttle Body.webp
 
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Im confused by the question. The port is plugged, not the hose....right? The hose is disconnected, right? I looked at my LX and I dont see any other explanation.
Is the question asking the function of the port/hose?
 
@Malleus - I did use the VIN when searching PartSouq. The PartSouq diagram does not appear to show the additional port on my throttle body.

@Kernal - here are a few more photos. PartSouq says 22210-66031 is the correct part # for my 1996 LX.

IMG_8128.webp

IMG_8130.webp

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@retlaw - I’m trying to identify the correct part number for a hose that should be connected to this port. While going through some maintenance items, I noticed the hose was missing. Since the port was exposed, I temporarily capped it.

The port does have a vacuum when the engine is running, so I assume something should definitely be connected here.
 
Odd, it'll be up to someone with an LX to chime in. That port's not on the Toyota 80s; at least not any I've seen.
 
Is your big hose connected to another port? Next to the one you had capped?
 
There is no extra port on a US spec 80/lx450 1fzfe. That hose isn’t connected and needs plugged into the line you capped.

IMG_3087.webp
 
@Malleus - I did use the VIN when searching PartSouq. The PartSouq diagram does not appear to show the additional port on my throttle body.

@Kernal - here are a few more photos. PartSouq says 22210-66031 is the correct part # for my 1996 LX.

View attachment 4124699
View attachment 4124700
View attachment 4124701

@retlaw - I’m trying to identify the correct part number for a hose that should be connected to this port. While going through some maintenance items, I noticed the hose was missing. Since the port was exposed, I temporarily capped it.

The port does have a vacuum when the engine is running, so I assume something should definitely be connected here.

I’d be interested in investigating your VIN.
 
Ditto: the fatter hose is not connected.

@whitecollarplumr : has anyone been working on the engine? The fatter hose is missing a hose clamp on either end and may not be an OEM hose (95337-06020). Check engine light on, any engine codes??
 
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Am I not seeing things correctly or is that non-OEM right side hose just laying against the throttle body next to the port it's supposed to be connected to with no hose clamps???
 
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