About 2 months ago I got in an accident with my z. Fortunately I wasnt hurt and the accident was not my fault. Anyway, just now I got it back and i see that my oil guage is giving me a reading of almost 0psi when I'm at idle, and about 28psi when driving. I changed the oil the next day, but I still got wack readings. So I took it back to the guys and they checked the wiring of everything, changed the oil pressure sensor (which may have been damaged during the accident), and it still wasnt giving the right readings. They didn't know what it was, so now I have to take it to an electrician. Have any of you guys ever had this problem? Because I have no idea what it could be. Maybe I need to replace the whole guage (which was working prior to the accident)?

Any input would be appreciated!!!

Thanks

 

bump

 

OIL PRESSURE GAUGE

The oil pressure gauge indicates engine oil pressure drawn from oil pressure sensor. With the ignition switch in the ON or START position,

Power is supplied:
- through triple meter terminal 9
- to oil pressure sensor terminal 1.

Ground is supplied:
- to triple meter terminal 7
- through oil pressure sensor terminal 3.

And triple meter receives oil pressure signal from oil pressure sensor:
- through oil pressure sensor terminal 2.
- to triple meter terminal 8.

Pretty darn simple circuit. They swapped out the oil pressure sensor so the only other "moving" part is the meter itself. It's doubtful that the wiring is damaged.

Pin, color, ignition switch, operating condition, reading
7, G/OR, oil pressure sensor ground, ON — Approx. 0
8, LG/R, Oil pressure sensor signal, ON, Engine stopped, approx. 1
(Engine running. (When the oil pressure is 500kpa.), Approx. 3)
9, R/L, Oil pressure sensor, ON — Approx. 5

So with the ignition on and the engine stopped you should read 1 volt at pin 8 (light green wire with red stripe)

With the ignition on and the engine running you should see a voltage of about 3 volts.

Page DI-46 has the troubleshooting charts on the oil gauge - if you're not reading about 3 volts it says to replace the gauge.

 

Hey Paul350Z, I noticed you live in the Riverside area as well. From what part? I live up Alessandro in the Mission Grove area. Maybe we can get a small meet going if you know anyone else with a Z in our area. What do ya say? Send PM if you wanna.

Sorry about the "off topic"...yeah, oil guages are cool, there...

 

Cool, some locals