DIY: Oil Pressure Gauge

spearfish25 · 11-08-2012, 09:59 AM

Interesting update. Haven't changed anything but now my oil pressures are running lower. When fully warmed up I'm idling at about 8psi, hit about 30-35psi at 2k RPM, and get to a max of about 60-75psi under WOT. Not sure what made the change. Thoughts? Some sort of blockage before the pressure sensor (not sure how that would happen). If there was blockage in the oil cooler, I'd guess the pressures would register higher, not lower.

ChrisSlicks · 11-08-2012, 11:02 AM

Same oil used as before?

Pressures below 3k rpms are about half of what you had before. Anyone know if the design of the oil pump would be such that it can partially fail and reduce oil pressure without a complete failure?

SPOHN · 11-08-2012, 11:09 AM

I get 85 to 90 psi under wot. And when cold starts. Only time I get down to 35psi is at idle.

spearfish25 · 11-08-2012, 11:21 AM

Yeah, my pressures have been cut in half fairly suddenly. This afternoon I'm going to change the oil and filter to make sure the filter isn't clogged and in bypass. Not particularly interested in pulling the oil pan off. If the pressures aren't better, I'll drop her off at Nissan and let them sort it out given I still should be covered under the 5yr/60k mile powertrain warranty.

I've been using the same Redline oil as usual. No idea why things have changed abruptly. Top reasons for low oil pressure I've read are 1) oil filter in bypass, 2) clogged strainer in the oil pan pickup, 3) frothing due to air getting picked up with overfilled oil pan, 4) oil pump seals worn, and 5) the ominous bearing problems.

kk370 · 11-13-2012, 09:09 PM

what a great sharing,,,detail

spearfish25 · 11-13-2012, 09:48 PM

Dropped the car off a Nissan for a few days. They checked the oil pressures with their equipment and said all is fine. Looks like the AEM gauge transducer is starting to crap out.

ChrisSlicks · 11-14-2012, 07:01 AM

That sucks, but better than a failing oil pump!

40 to 332 · 11-30-2014, 10:06 AM

Quote:

Originally Posted by spearfish25

Dropped the car off a Nissan for a few days. They checked the oil pressures with their equipment and said all is fine. Looks like the AEM gauge transducer is starting to crap out.

Did this issue ever get resolved? Was the drop in oil pressure traced to a fault in the gauge? If so, is this a problem others have experienced using the AEM gauge? I'm thinking of doing this install and would like to avoid having to replace the gauge every few months because of a defect. How do the AEM gauges compare to others such as Delfie or Innovate? Thanks for any input.

flashgordon · 07-01-2013, 03:26 AM

This is my installation:

Instrument Used:
GlowShift | Elite Oil Pressure Gauge with Electronic Pressure Sensor

Adapter for pressure sender Used:
Oil Pressure Gauge T Piece,1/8 BSPT Male to 1/8 NPT Female Japanese Cars (057) | eBay

flashgordon · 07-06-2013, 10:56 AM

A little update about Glowshift Gauge:

1) good thing, I discovered that it's possible to setup an audible warning in conjunction with the warning lamp!
2) bad thing, the two pushbuttons moves without a guide, so I must add a rubber adhesive under it to avoid Rattle in the instrument...

Mandingo · 07-14-2013, 09:35 AM

Quote:

Originally Posted by flashgordon

A little update about Glowshift Gauge:

1) good thing, I discovered that it's possible to setup an audible warning in conjunction with the warning lamp!
2) bad thing, the two pushbuttons moves without a guide, so I must add a rubber adhesive under it to avoid Rattle in the instrument...

You're saying the vibration causes the buttons to be depressed and go into programming modes on the gauge?

kk370 · 07-07-2013, 03:15 AM

too hard for me to do so...awesome

Wonka2581 · 07-07-2013, 04:20 AM

Sub'd

flashgordon · 07-14-2013, 09:44 AM

No, no.....
The vibrations cause rattle during driving.
Placing a little piece of soft rubber under the buttons stops the rattle.

Mandingo · 07-14-2013, 09:46 AM

Quote:

Originally Posted by flashgordon

No, no.....
The vibrations cause rattle during driving.
Placing a little piece of soft rubber under the buttons stops the rattle.

Oh! Understood

11-08-2012, 09:59 AM	#1 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1858	Interesting update. Haven't changed anything but now my oil pressures are running lower. When fully warmed up I'm idling at about 8psi, hit about 30-35psi at 2k RPM, and get to a max of about 60-75psi under WOT. Not sure what made the change. Thoughts? Some sort of blockage before the pressure sensor (not sure how that would happen). If there was blockage in the oil cooler, I'd guess the pressures would register higher, not lower. __________________ 2013 Cadillac V-Wagon, RIP Z

11-08-2012, 11:02 AM	#2 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 655	Same oil used as before? Pressures below 3k rpms are about half of what you had before. Anyone know if the design of the oil pump would be such that it can partially fail and reduce oil pressure without a complete failure? __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

11-08-2012, 11:09 AM	#3 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 47 Posts: 14,844 Drives: Waiting on next Z Rep Power: 223	I get 85 to 90 psi under wot. And when cold starts. Only time I get down to 35psi is at idle. __________________ Last edited by SPOHN; 11-08-2012 at 11:12 AM.

11-08-2012, 11:21 AM	#4 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1858	Yeah, my pressures have been cut in half fairly suddenly. This afternoon I'm going to change the oil and filter to make sure the filter isn't clogged and in bypass. Not particularly interested in pulling the oil pan off. If the pressures aren't better, I'll drop her off at Nissan and let them sort it out given I still should be covered under the 5yr/60k mile powertrain warranty. I've been using the same Redline oil as usual. No idea why things have changed abruptly. Top reasons for low oil pressure I've read are 1) oil filter in bypass, 2) clogged strainer in the oil pan pickup, 3) frothing due to air getting picked up with overfilled oil pan, 4) oil pump seals worn, and 5) the ominous bearing problems. __________________ 2013 Cadillac V-Wagon, RIP Z Last edited by spearfish25; 11-08-2012 at 11:37 AM.

11-13-2012, 09:48 PM	#6 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1858	Dropped the car off a Nissan for a few days. They checked the oil pressures with their equipment and said all is fine. Looks like the AEM gauge transducer is starting to crap out. __________________ 2013 Cadillac V-Wagon, RIP Z

11-13-2012, 09:09 PM	#5 (permalink)
kk370 Base Member Join Date: Aug 2011 Location: taiwan Posts: 33 Drives: 09-370z-white-a7 Rep Power: 15	what a great sharing,,,detail

11-14-2012, 07:01 AM	#7 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 655	That sucks, but better than a failing oil pump! __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

07-01-2013, 03:26 AM	#9 (permalink)
flashgordon Premium Member Join Date: Sep 2009 Location: Italy Posts: 146 Drives: 370z Rep Power: 17	This is my installation: Instrument Used: GlowShift \| Elite Oil Pressure Gauge with Electronic Pressure Sensor Adapter for pressure sender Used: Oil Pressure Gauge T Piece,1/8 BSPT Male to 1/8 NPT Female Japanese Cars (057) \| eBay Mandingo and David Parra like this.

07-06-2013, 10:56 AM	#10 (permalink)
flashgordon Premium Member Join Date: Sep 2009 Location: Italy Posts: 146 Drives: 370z Rep Power: 17	A little update about Glowshift Gauge: 1) good thing, I discovered that it's possible to setup an audible warning in conjunction with the warning lamp! 2) bad thing, the two pushbuttons moves without a guide, so I must add a rubber adhesive under it to avoid Rattle in the instrument...

07-07-2013, 03:15 AM	#12 (permalink)
kk370 Base Member Join Date: Aug 2011 Location: taiwan Posts: 33 Drives: 09-370z-white-a7 Rep Power: 15	too hard for me to do so...awesome

07-07-2013, 04:20 AM	#13 (permalink)
Wonka2581 A True Z Fanatic Join Date: Nov 2012 Location: Chattanooga, TN Posts: 3,083 Drives: MY WIFE CRAZY.... Rep Power: 2613	Sub'd __________________ "I have nothing to offer but blood, toil, tears and sweat""Winston Churchill"

07-14-2013, 09:44 AM	#14 (permalink)
flashgordon Premium Member Join Date: Sep 2009 Location: Italy Posts: 146 Drives: 370z Rep Power: 17	No, no..... The vibrations cause rattle during driving. Placing a little piece of soft rubber under the buttons stops the rattle.

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