1HDT Pressure Switches (1 Viewer)

Joined
May 23, 2019
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341
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WNY For Now
Can anyone confirm function of these two pressure switches that run off the intake on the 1HDT? I think one is for the turbo boost light in the dash. What's the second one for? I can't seem to track them down in my wiring diagram.

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Joined
May 23, 2019
Messages
341
Location
WNY For Now
I thought maybe. You'd think one switch could do that...

So no reason not to delete them then. I'm increasing boost so they would not read correctly anyway. Maybe I'll turn the overboots light into a Glow plug light or something...

Thanks
 
Joined
Sep 30, 2014
Messages
489
Just FYI, when I increased boost on my 1HDT I swapped those sensors over for an oil pressure sensor from a different model car. Have a look on the Tridon site for part number and pressures. Basically you can change what pressure the green/red light come on for less than $50 in parts (if it’s important to you)
 
Joined
Apr 29, 2011
Messages
78
Location
Boulder, Utah
IIRC if you just remove them/leave an open circuit one of the boost lights stays on constantly which was annoying to me especially at night. Don't remember how I fixed it off the top of my head, I think when I replaced dash lights with LEDs I disconnected the light at the dash.
 

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