ok... so, i posted before about the jdm oil pressure sending unit on my car, i changed it out for the usdm one, but now my oil press. gauge reads + 120 psi at ALL times, even w/ the battery unplugged and the car off... :1zhelp:
oil pressure
- Thread starter Insidious Surmiser
- Start date
gimme 10 seconds
dunno... it's kinda hard to get to... i'm feelin lazy, i just put the usdm one on and replaced my power steering pump... so it'll wait another day... my oil pan gasket's still leakin, so i'll get to it when i do that tomorrow, i'll post again prolly tomorrow night if/when i finish
updating this thread.... i pulled the gauge cluster cover off and wiggled the oil press. gauge needle, and tried turning on the car... the needle won't move... at all, at any position...? is there any way to test for a signal using a circuit tester?
the oil pressure gauge is just a thermometer...
voltage comes straight from the gauge fuse, which is powered up from the ignition switch. The sender is a variable ground, so more pressure = less resistance. A shorted sender would allow heat to accumulate in the gauge, permanently deforming the spring...
voltage comes straight from the gauge fuse, which is powered up from the ignition switch. The sender is a variable ground, so more pressure = less resistance. A shorted sender would allow heat to accumulate in the gauge, permanently deforming the spring...
so, assuming it's shorted, is there any way to prevent this from happening again?
edit: and are you saying the oil pressure sending unit is a ground? (the sensor)... if so i know why it shorted
edit: and are you saying the oil pressure sending unit is a ground? (the sensor)... if so i know why it shorted
dammit... i used teflon tape all over that bitch, lmao :-/ o well, off it comes again, i'll get a new gauge too, then we'll see what happens
i was doin it just for good measure, i'm tired of leaks.... trust me, lol
edit:didn't see they were tapered either :-/... at least i learned something from my stupidity :-/
edit:didn't see they were tapered either :-/... at least i learned something from my stupidity :-/
Its not a variable resistor like most sensors, it is a pulse modulated sensor, very unique. Here is the TSRM note on checking its functionality. Look at the section "Inspect Sender Gauge Operation"
http://www.cygnusx1.net/supra/library/TSRM/be/BE_043.html
http://www.cygnusx1.net/supra/library/TSRM/be/BE_043.html
hm... well, at least i figured out what the problem was too, lol... i remember seeing smoke coming from that area when i ran the car for short periods (a minute) hope i didn't fry anything else :-/
and i see the tsrm never fails, lol... i think i'll make it a general rule of thumb to check the tsrm before i do anything from now on... it can only make life esier
+1'd ya on that one.89jdm7m said:
You are the smartest man alive!
JK, seriously though, good thinking. It didnt' take long for us to sink that in your head did it? lol
not long at all, lol, and i'll hit up the haynes w/ the 3 1/2" goose mag. load (really big 12 gauge shell), and i'm serious about that