Pennzoil Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
Falken S/TZ-04 245/75/16 Clearance
by JBinTX30
08/30/15 10:17 AM
Mighty Guard II Cut Open
by freshcopedawg
08/30/15 09:39 AM
Wilderness AT
by sleepery
08/30/15 09:34 AM
Fill her up?
by CourierDriver
08/30/15 09:33 AM
Do HDEO oils have too much detergent for OPE
by bchannell
08/30/15 08:59 AM
Is this whats wrong with BMW?
by edwardh1
08/30/15 08:52 AM
Harley Softail Slim S and Fatboy S 110ci Rumors...
by LoneRanger
08/30/15 08:32 AM
Kmart Super S 5qts $7.99, 1qt $1.69 thru Sep 5
by GreenFocus
08/30/15 08:12 AM
Need a ride?
by CourierDriver
08/30/15 08:07 AM
Weapons of the US Military
by CourierDriver
08/30/15 07:22 AM
Roald Dahl's Matilda
by Shannow
08/30/15 06:10 AM
Watch question
by Toy4x4
08/30/15 01:54 AM
Newest Members
smb530, Johnny12, gthorpe, snake123, ChooChooMan74
55192 Registered Users
Who's Online
96 registered (alphasparky353, AZjeff, 4wheeldog, aquariuscsm, AandPDan, 7 invisible), 1724 Guests and 128 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55192 Members
66 Forums
236687 Topics
3813580 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#2812130 - 11/24/12 03:27 AM OBDII & Oil Pressure
MarkStock Offline


Registered: 10/23/12
Posts: 635
Loc: CA
So I've managed to get access on my laptop to what appears to be every Ford code through my OBDII reader.

But I don't seem to have oil pressure.

Is there something else that I should be looking for? I have all sorts of things I can monitor.

Also, I have a code that's telling me I have 91 octane fuel in the tank but I only fill up on regular. Any idea what that's about?

Top
#2812161 - 11/24/12 05:42 AM Re: OBDII & Oil Pressure [Re: MarkStock]
Shannow Offline


Registered: 12/12/02
Posts: 29804
Loc: Oz
Put 0W-20 in it, and then there's one missing link that you don't have to worry about...ever...thy did the tests...and the tests won.

Top
#2812167 - 11/24/12 06:06 AM Re: OBDII & Oil Pressure [Re: MarkStock]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 16682
Loc: Sunny Florida
There's a reason they don't have a gauge, oil related failures are practically non-existent.

Too much information is as bad as too little...

SOMEWHERE there is an oil pressure sender on every late model engine as the PCM needs that info. Most will cut fuel if there is a low enough reading, and even trigger a code for too much oil pressure as well.

It's in there, you just have to find it!


Edited by SteveSRT8 (11/24/12 06:08 AM)
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#2812168 - 11/24/12 06:10 AM Re: OBDII & Oil Pressure [Re: MarkStock]
Shannow Offline


Registered: 12/12/02
Posts: 29804
Loc: Oz
He doesn't need it, nor go look for it.

Right oil, right hole...problem is simply overthinking the issue

Top
#2812170 - 11/24/12 06:11 AM Re: OBDII & Oil Pressure [Re: MarkStock]
EddieCairns Offline


Registered: 09/30/12
Posts: 145
Loc: Scotland
You will only get the oil pressure information if there is a an oil pressure sensor on the car. If it only has a switch to put the oil pressure warning light on and off it will not be able to display oil pressure via the ODBII system.

eddie

Top
#2812184 - 11/24/12 06:41 AM Re: OBDII & Oil Pressure [Re: SteveSRT8]
MarkStock Offline


Registered: 10/23/12
Posts: 635
Loc: CA
Originally Posted By: SteveSRT8
There's a reason they don't have a gauge, oil related failures are practically non-existent.

Too much information is as bad as too little...

SOMEWHERE there is an oil pressure sender on every late model engine as the PCM needs that info. Most will cut fuel if there is a low enough reading, and even trigger a code for too much oil pressure as well.

It's in there, you just have to find it!


Apparently it's not reported through the OBDII interface.

Top
#2812185 - 11/24/12 06:43 AM Re: OBDII & Oil Pressure [Re: EddieCairns]
MarkStock Offline


Registered: 10/23/12
Posts: 635
Loc: CA
Originally Posted By: EddieCairns
You will only get the oil pressure information if there is a an oil pressure sensor on the car. If it only has a switch to put the oil pressure warning light on and off it will not be able to display oil pressure via the ODBII system.

eddie


Aye, thanks for the explanation.

Top
#2812187 - 11/24/12 06:47 AM Re: OBDII & Oil Pressure [Re: Shannow]
MarkStock Offline


Registered: 10/23/12
Posts: 635
Loc: CA
Originally Posted By: Shannow
He doesn't need it, nor go look for it.

Right oil, right hole...problem is simply overthinking the issue


Correct. It's not a concern. Just an interest.

I was happy to find I could get just about every other indicator imagineable, just not oil pressure.

Top
#2812190 - 11/24/12 06:52 AM Re: OBDII & Oil Pressure [Re: EddieCairns]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 16682
Loc: Sunny Florida
Originally Posted By: EddieCairns
You will only get the oil pressure information if there is a an oil pressure sensor on the car. If it only has a switch to put the oil pressure warning light on and off it will not be able to display oil pressure via the ODBII system.

eddie


While I have not seen them all I have yet to see any newer car without an oil pressure switch at the least. Many cars that do NOT have a gauge still collect data from an oil pressure reading somewhere in the engine.
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#2812192 - 11/24/12 06:55 AM Re: OBDII & Oil Pressure [Re: MarkStock]
NHGUY Offline


Registered: 10/09/11
Posts: 4108
Loc: USA
I wonder if VVT vehicles have to log psi data...afterall thats how the valve timing actuators work...oil pressure.

Top
#2812194 - 11/24/12 06:56 AM Re: OBDII & Oil Pressure [Re: MarkStock]
Donald Offline


Registered: 03/21/04
Posts: 15594
Loc: Upstate NY
You might even be thankful about the switch vs sensor. My Cummins engine has a $275 sensor and has + and - voltage going to it along with the sensor output. Unsure why. It feeds the ECM. And mine would go to midpoint with key on, engine running or not. So I replaced it.
_________________________
2015 Subaru Forester 2.5 engine/CVT PP & M1
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1


Top
#2812245 - 11/24/12 07:48 AM Re: OBDII & Oil Pressure [Re: MarkStock]
Miller88 Offline


Registered: 04/09/08
Posts: 9161
Loc: Onondaga County
You're going to have to tap and install an aftermarket oil pressure gauge. I am going to do just that when the Focus gets out of warranty.

Not having any problems with it, but I just like to watch it.
_________________________
'00 Jeep Cherokee
'11 Ford Focus

Top
#2812301 - 11/24/12 08:44 AM Re: OBDII & Oil Pressure [Re: MarkStock]
pcoxe Offline


Registered: 05/14/07
Posts: 352
Loc: South Carolina
The octane rating on the pump is the minimum allowed. A dealer many years ago showed me a delivery slip where his "regular" fuel delivery was actually rated 90 octane, almost high enough to put in the premium tank.

Top
#2812304 - 11/24/12 08:46 AM Re: OBDII & Oil Pressure [Re: Shannow]
Trav Offline


Registered: 11/20/06
Posts: 12242
Loc: MA, Mittelfranken.de
Quote:
thy did the tests...and the tests won.

But but i need to check the oil pressure. I cant drive a bloody test. crackmeup
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#2812314 - 11/24/12 08:55 AM Re: OBDII & Oil Pressure [Re: MarkStock]
RF Overlord Offline


Registered: 11/08/03
Posts: 3438
Loc: Cape Cod, MA
As EddieCairns states above, most Ford vehicles, since at least 1990 in the US, don't have a real working OP gauge so that info will not be available in the OBDII data. Even if there is a "gauge", it's a fake that's been ballasted to read approx midway at all times and gets its info from a switch rather than a true sender. It was one of Ford's "better ideas" to hush up people too dumb to realise oil pressure is SUPPOSED to vary with RPM and temperature.
_________________________
Supercharged '03 Mercury Marauder - Trilogy Motorsports #61
PP 5W-30 / MC FL820S

Y2K Grand Marquis GS - daily driver
MC 5W-20 / MC FL820S

Top
Page 1 of 2 1 2 >