Oil Pressure Gauge
#26
Mmmmm... Rotary Donut
Join Date: Nov 2003
Location: Lake in the Hills, IL (NW Chicago Burbs)
Posts: 2,376
Likes: 0
Received 4 Likes
on
2 Posts
Mazda switched over the Miata around '94 to a dummy oil pressure sender and gauge, and it's been fairly common amongst enthusiasts to add an aftermarket oil pressure sender (JC Whitney sells one, VDO sells one you can get at some autoparts stores) to solve the problem. The gauge should work fine, but it's missing the PSI markings that might be more useful. I don't know if any of these senders will work the the '8, but with all the other similarities to the Miata I would bet they would.
I seriously doubt Mazda will ever offer a real working OPG again, considering there's probably less than 10% of the owners would understand what the data meant... and dealers would be overwhelmed by calls about 'fluctuating' oil "level". Sad, but true.
I seriously doubt Mazda will ever offer a real working OPG again, considering there's probably less than 10% of the owners would understand what the data meant... and dealers would be overwhelmed by calls about 'fluctuating' oil "level". Sad, but true.
#27
Lubricious
Join Date: Oct 2003
Location: SF Bay Area, California
Posts: 3,425
Likes: 0
Received 4 Likes
on
4 Posts
Originally posted by RX8_GT
Almost hate to say it but I have quickly grown to like the digital Speedometer - all the other should be analog and fully functional IMHO. Not opposed to a graphic / numberic speedo.
John
Almost hate to say it but I have quickly grown to like the digital Speedometer - all the other should be analog and fully functional IMHO. Not opposed to a graphic / numberic speedo.
John
#29
Registered User
Join Date: Aug 2002
Location: Denver, CO, USA
Posts: 2,045
Likes: 0
Received 0 Likes
on
0 Posts
Re: Re: Re: Re: Re: Re: Not going to happen....
Originally posted by OverLOAD
The answer is B. The new sender has it's own, separate Analog, mechanical gauge...
The answer is B. The new sender has it's own, separate Analog, mechanical gauge...
Originally posted by G8rboy
The gauge should work fine, but it's missing the PSI markings that might be more useful.
The gauge should work fine, but it's missing the PSI markings that might be more useful.
I don't know if any of these senders will work the the '8, but with all the other similarities to the Miata I would bet they would.
---jps
#31
Hyper Space RX-8 _,.-^'`
Thread Starter
Join Date: Aug 2003
Location: Motor City
Posts: 529
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Omicron
It really would be nice to get that oil pressure gauge functioning as it should...
It really would be nice to get that oil pressure gauge functioning as it should...
see below...
The main bus lines from the ECU look like A & B.. but on the next sheet they have a ton of info on the actual warning lamps having their own dedicated wire from the ECU, oddly enough instead of being just another bus message. Perhaps they wanted to ensure that those warning lamps would work even if the gauge cluster somehow was not working.
EDIT: I take that back.. the A/B lines are the same lines (color wires) that the TPMS uses to communicate, so that almost certainly is the CAN bus.
Last edited by OverLOAD; 02-29-2004 at 01:57 PM.
#35
Hyper Space RX-8 _,.-^'`
Thread Starter
Join Date: Aug 2003
Location: Motor City
Posts: 529
Likes: 0
Received 0 Likes
on
0 Posts
And the TPMS module..
From a related thread, it looks like to disable the TPMS temporarily for testing, all that is needed is to pull the room fuse. Then find a way to cut the power from tpms later if it works.
OverLOAD
From a related thread, it looks like to disable the TPMS temporarily for testing, all that is needed is to pull the room fuse. Then find a way to cut the power from tpms later if it works.
OverLOAD
#36
Registered
iTrader: (1)
Join Date: May 2003
Location: PA
Posts: 3,754
Likes: 0
Received 0 Likes
on
0 Posts
I don't know much about the RX8 OPG, but I know alot about pressure guages at out power plant...
from what it sounds like, we have a oil pressure switch. A pressure switch goes between true and false at a set pressure. It is not capable of delivering a full range analog signal.
to get a full range analog signal you need a pressure guage which will probably deliver a 4-20 miliamp signal which an analog indicator can be hooked up to. Unfortunetly, the RX8 guages are digitally controlled as far as I can tell, so you will need a analog/digital converter to make the stock guages work. So its not exactly an easy thing to do.
from what it sounds like, we have a oil pressure switch. A pressure switch goes between true and false at a set pressure. It is not capable of delivering a full range analog signal.
to get a full range analog signal you need a pressure guage which will probably deliver a 4-20 miliamp signal which an analog indicator can be hooked up to. Unfortunetly, the RX8 guages are digitally controlled as far as I can tell, so you will need a analog/digital converter to make the stock guages work. So its not exactly an easy thing to do.
#37
Hyper Space RX-8 _,.-^'`
Thread Starter
Join Date: Aug 2003
Location: Motor City
Posts: 529
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by pr0ber
I don't know much about the RX8 OPG, but I know alot about pressure guages at out power plant...
from what it sounds like, we have a oil pressure switch. A pressure switch goes between true and false at a set pressure. It is not capable of delivering a full range analog signal.
to get a full range analog signal you need a pressure guage which will probably deliver a 4-20 miliamp signal which an analog indicator can be hooked up to. Unfortunetly, the RX8 guages are digitally controlled as far as I can tell, so you will need a analog/digital converter to make the stock guages work. So its not exactly an easy thing to do.
I don't know much about the RX8 OPG, but I know alot about pressure guages at out power plant...
from what it sounds like, we have a oil pressure switch. A pressure switch goes between true and false at a set pressure. It is not capable of delivering a full range analog signal.
to get a full range analog signal you need a pressure guage which will probably deliver a 4-20 miliamp signal which an analog indicator can be hooked up to. Unfortunetly, the RX8 guages are digitally controlled as far as I can tell, so you will need a analog/digital converter to make the stock guages work. So its not exactly an easy thing to do.
It seems as though the best/only? way to get this done, is to replace the sending unit, and a PCM code change.. Mazda? Want to do this as an option? I'll pay, and so will hundreds if not thousands of others at the dealerships.. are you listening? You should be... An informed decision on the OPG would be a remarkable custmer response from Mazda
Regards,
OverLOAD
[I can dream can't i?]
#38
Registered User
Join Date: Aug 2002
Location: Dallas Texas
Posts: 555
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by OverLOAD
,,, Mazda? Want to do this as an option? I'll pay, and so will hundreds if not thousands of others at the dealerships.. are you listening? You should be... An informed decision on the OPG would be a remarkable custmer response from Mazda
Regards,
OverLOAD
[I can dream can't i?]
,,, Mazda? Want to do this as an option? I'll pay, and so will hundreds if not thousands of others at the dealerships.. are you listening? You should be... An informed decision on the OPG would be a remarkable custmer response from Mazda
Regards,
OverLOAD
[I can dream can't i?]
:D
#41
Motor City Madman
Join Date: Nov 2005
Location: Detroit, MI
Posts: 98
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by G8rboy
I seriously doubt Mazda will ever offer a real working OPG again, considering there's probably less than 10% of the owners would understand what the data meant... and dealers would be overwhelmed by calls about 'fluctuating' oil "level". Sad, but true.
my
.02
Thread
Thread Starter
Forum
Replies
Last Post