Pollution Sensor Adjustment (1 Viewer)

[CloudCity]

Hey folks, I just posted up a little video that shows owners with the same NAV unit as my '04 LX how to adjust the Smog Sensor sensitivity. This is part of my new project called Lux Cruisers, which will be an information repository specific to the LX 470.

 

[FastCarGuy]

So is that what makes it switch to Inside Air quicker?

 

[CloudCity]

So is that what makes it switch to Inside Air quicker?

Yes, it must be on "Auto" to switch when it senses VOC's but adjusting it higher makes it switch sooner, adjusting lower makes it hold position longer.

 

[FastCarGuy]

I believe it also switches to Recirc. if major difference in ambient OS temp vs cabin temp. Here is Az. mine essentially stays in Recirc mode all summer

 

[shiretowndown]

@CloudCity what’s the suggested maint on the actual sensor for smog? Where is it located? Thanks for the video!

 

[jtb517]

This makes me wonder what other hidden menus and settings there might be in these vehicles.

 

[CloudCity]

@CloudCity what’s the suggested maint on the actual sensor for smog? Where is it located? Thanks for the video!

Great question, I tried to look this up once and only found O2 sensor posts, same for a general internet search. If you find out I'd love to know!

 

[jtb517]

Did a little googling and found this thread. Looks like things might vary quite a bit across different model years. Makes me a little nervous to start pressing random buttons just to see what happens.

Reset maint light, Nav override, hidden diagnostic menu, door lock option

Got sick of searching so much for these when I needed them, so here's a summary if you're interested. Post any discrepancies you see in other model years. Also, post other hidden gems if you have them... Have fun... Fish ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Summary of reset maint light...

forum.ih8mud.com

 

[CloudCity]

Did a little googling and found this thread. Looks like things might vary quite a bit across different model years. Makes me a little nervous to start pressing random buttons just to see what happens.

Reset maint light, Nav override, hidden diagnostic menu, door lock option

Got sick of searching so much for these when I needed them, so here's a summary if you're interested. Post any discrepancies you see in other model years. Also, post other hidden gems if you have them... Have fun... Fish ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Summary of reset maint light...

forum.ih8mud.com

I would guess most if not all of those can be adjusted in techstream, but the previous owner must be my secret twin because he set this rig up exactly like I'd want it.

 

[J1000]

@CloudCity what’s the suggested maint on the actual sensor for smog? Where is it located? Thanks for the video!

It is underneath the ignition key behind a small vent hole in the dash. I'm not sure what it is but it looks like a small resistor or capacitor. Not sure that any maintenance is needed. I pulled my dash to install some switches and noticed that the sensor was not reattached probably from previous work. I reattached it and my recirc now switches more often, but still not as often as I'd like. Thanks @CloudCity for the tip I'm going to increase sensitivity.

See posts below what I found is probably temperature sensor.

 

[hoser]

Smoke Sensor Cleaning (Air Quality/Smog Sensor)

All year LX470's and 03-07 LC's came with smoke/smog sensor that monitors ambient air quality. Should it detect low air quality, it switches the HVAC system to recirculate. The sensor is located almost directly below the hood latch. There are (2) versions. Pictured is the 98-02 LX version and...

forum.ih8mud.com