3ZV-FE oil pressure specs?

[JohnStra]

Where can I find OEM oil pressure specs for my 3ZV-FE? At low idle (750), my oem guage shows NO oil pressure (with a new sender). My mech dash guage shows ~18psi. Does this with both 5w30 dino or 0w30 Amsoil. All other temps (RPMs) seem ok, but I'd like to test with mech guage against specs.

[zoni]

OEM specs...

at idle, 29kPa, 4.3psi or more

at 3,000rpm, 294-539kPa, 43-78psi

i hope you are doing the readings with a pressure gauge connected to where the oil pressure switch screws in, right next to the oil filter. ya know i think i have a pic of this...

yup i had it attached to an old thread...

[JohnStra]

Zoni - Did you get those pressure specs from the service manual? If so, I trust them over what my Haynes says...
4.3 psi @ idle
36-71 psi @ 3000 rpm

[zoni]

yeah straight from the toyota service manual.

[racerhex]

That oil pressure switch what exactly does that do.......and can I hook my oil pressure gague up to it or what.....sounds noobish i know but im not quite sure! LoL

[JohnStra]

On many vehicles, the oem oil pressure guage/switch is little more than a dummy light - it generally tells you if there's a problem, but it doesn't give you much real time info. The oem switch is installed in a port. You can install your own sender in the port for your guage. Some vehicles ECM requires that the oem switch remain installed though, so you may have to T off the port.
-john

[racerhex]

thanks ill look into that!

[zoni]

thats exactly what people do when they need to hook up a gauge, nice johnstra!