What switch is this called ?

Good morning,

I can’t see the part number on this switch due to it being faded.

What is this switch called ?
Or if anyone has a part number I’d appreciate it.

fuel pressure regulator has a vacuum line attached to it and one vacuum line going to my intake penulum

thank you

 

It's the hot start fuel pressure bypass. It is designed to raise the fuel pressure during hot starts to help it start faster. It doesn't make a huge difference really, you could just unhook it and hook the regulator nipple directly to the intake if you want. It doesn't set a code.

 

Thank you so much. You wouldn’t by any chance have a part number ?
If not it’s totally fine I’ll do more homework.

 

These three are all listed as parts that work for that VSV, though I'm fairly sure the third one isn't the part you're looking for. Pretty confident it is only the first part number that is an exact match for your truck. Appears discontinued

 

You can explore all that here if you want

VACUUM PIPING | Toyota TACOMA RZN171L-CRMDKAB RZN161,171,VZN160,170 | Parts Catalogs | PartSouq

 

Thank you for your help.
Yeah it’s a PINA to find that switch valve.
I’m going into Toyota today to get another oil cap and will ask them there for a little more help on their end.

 

FINALLY Found the switch. it’s part number 90910-12080

about 100$ at dealer and about 80$ on eBay but take the risk part isn’t even OEM lol