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914World.com _ 914World Garage _ Installed an oil pressure sender and guage today

Posted by: ChrisReale Apr 4 2003, 06:06 PM

Kind of a bitch to get working right though. I ended up running two wires through the center tunnel, one from the remote switch to the guage, the other grounded at the sender to the guage. I then spliced the "+" from the oil temp guage "+". Pressure is about 45 lbs at idle, 70 at WOT. Sound ok?

Posted by: madd_dogg_914 Apr 5 2003, 05:30 PM

Was the car cold when you got those numbers? Once my car is fully warmed up idle usually produces about 20-25ish lbs., and it would get up to around 60 at WOT. But who knows, maybe there is sumthin funny with my set up.

-Chris

Posted by: ChrisReale Apr 5 2003, 05:33 PM

yea, it was cold. I watched it while it warmed up and the numbers dropped a bit.

Posted by: madd_dogg_914 Apr 6 2003, 10:50 AM

Sounds normal then. It is cool having the oil pressure guage, go around a turn really fast at high RPM's and watch that sucker plummet. Kinda' un-nerving

-Chris

O, and happy birthday! I will be turning 24 in July

Posted by: Brad Roberts Apr 6 2003, 01:38 PM

Um Chris..

One of those "poles" on the sending unit is for the dash light. You should have only had to run one wire to the front of the car.

B

Posted by: madd_dogg_914 Apr 6 2003, 03:11 PM

He's right. I idn't inderstand why you had to run two wires, but I just figured must've been a different sender. Brad made sense of the whole thing like he does a lot (stupid Brad now I have to do it all over GRRRRRRRRRRRRRR). Now you are gonna have to tear apart the whole thing and do it again!

. . . . . . . . . . . . . .
914 owners . . . . . . . . Brad

Posted by: ChrisReale Apr 6 2003, 04:16 PM

I know one was for the pole light, I ran the ground from the gauge to the sensor ground. This was the only way I could get it to work! I'll go through it again, and see where I f'ed up. I need to make sure I grounded the case of the sensor...

Posted by: Brad Roberts Apr 6 2003, 05:02 PM

The gauge grounds through the normal wiring of the chassis.. Not the sending unit. Where is the gauge in the car (center console ?) If so.. there is a bundle of brown ground wires you can tee off of. This is how the factory does it. Some of the other stock small center console gauges have 2 "tabs" on them for grounds.. this way you can run a wire to it and come off of it with another ground for another gauge. If it works leave it alone. I'm not a fan of adding wires to the cars. I try adn use all the stock wiring I can.

B

Posted by: jkeyzer Apr 6 2003, 06:23 PM

Chris, is this the dual sender that people use the grease gun hose to relocate?

Do you have pics of the install?

Posted by: ChrisReale Apr 6 2003, 06:31 PM

Yes, it has the remote hose that screws into the stock pressure switch hole. No pics, sorry

Posted by: Dave_Darling Apr 6 2003, 11:58 PM

The lights on the gauge ground through their own wires. The gauge movement itself, however, grounds through the "sender wire" and the sender. The sender really is just a variable resistor. Its case needs to be grounded, which is easy to do if you bolt it onto a ground like the fan shroud (easiest location for me). If nothing else, you can clamp a wire between the sender case and whatever bracket you're using, and run that ground wire to a common ground point (e.g., under the relay board) or directly to the battery ground.

--DD