Location of the oil pressure sensor?
#1
Location of the oil pressure sensor?
I've noticed my oil pressure is slightly higher lately (at 5000 miles) than when originally bought the car. Trying to decide if it is a good sign (i.e., stronger oil pump) or a bad one (i.e., fouled oil line or filter). Does anybody know where the sensor is located between the oil sump, oil pump, the filter and the engine? Anybody else noticed this increase as well?
#2
Mmmmm... Rotary Donut
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Originally Posted by bxb40
I've noticed my oil pressure is slightly higher lately (at 5000 miles) than when originally bought the car. Trying to decide if it is a good sign (i.e., stronger oil pump) or a bad one (i.e., fouled oil line or filter). Does anybody know where the sensor is located between the oil sump, oil pump, the filter and the engine? Anybody else noticed this increase as well?
This is one of my biggest pet peeves of the '8- for a $30k high performance sports car, I really expected a real working OPG.
#3
Hmmmm....... what a waste of the instrument cluster!
Should have put a voltmeter or even a water temp gauge there instead.
Anyone notice that all these new cars only have warning lamps and no longer any gauges?
I reckon its a conspiracy between Autometer and all the manufacturers so that all the ricers will buy more of their products. LOL
Should have put a voltmeter or even a water temp gauge there instead.
Anyone notice that all these new cars only have warning lamps and no longer any gauges?
I reckon its a conspiracy between Autometer and all the manufacturers so that all the ricers will buy more of their products. LOL
#5
How do you know it is a dummy unit? I recall when I top off with 1 qt. of 10W40 mid-oil change, the needle shifted higher with 1 unit. After the dealer changed the oil next, dropped back 1 unit. Now, it is 1 unit up again though I did not do anything this time ;o)
The car is new, came with M already. So if the indicator is dummy, it does have at least two very close positions ;o) Still, where is the pick-up sensor located? Just for curiosity.
The car is new, came with M already. So if the indicator is dummy, it does have at least two very close positions ;o) Still, where is the pick-up sensor located? Just for curiosity.
#6
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You will find a real unit fluctuate rapidly, changing with engine speed and temperature. The fast movement scared consumers and they would bring the cars in for service. Because of these consumers, manufacturers put in an idiot lights shaped in a dial.
#7
Mmmmm... Rotary Donut
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Originally Posted by bxb40
How do you know it is a dummy unit? I recall when I top off with 1 qt. of 10W40 mid-oil change, the needle shifted higher with 1 unit. After the dealer changed the oil next, dropped back 1 unit. Now, it is 1 unit up again though I did not do anything this time ;o).
#8
Mmmmm... Rotary Donut
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Originally Posted by bxb40
How do you know it is a dummy unit? I recall when I top off with 1 qt. of 10W40 mid-oil change, the needle shifted higher with 1 unit. After the dealer changed the oil next, dropped back 1 unit. Now, it is 1 unit up again though I did not do anything this time ;o)
The car is new, came with M already. So if the indicator is dummy, it does have at least two very close positions ;o) Still, where is the pick-up sensor located? Just for curiosity.
The car is new, came with M already. So if the indicator is dummy, it does have at least two very close positions ;o) Still, where is the pick-up sensor located? Just for curiosity.
#9
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From JIM MEDERER of Racing Beat
http://www.rxtuner.com/farticles/BeautyandtheBeat.pdf
"Here’s some of information that we uncovered that we really found amusing! When you look at the instrument panel, it appears that you have an Oil Pressure Gauge. Well, not really! During our research we found that there is no Oil Pressure Sender on the engine—only an Oil Pressure Switch that turns on and off at about 0.5 kg/cm2. When you start the engine and the oil pressure reaches that amount, the switch sends a signal to the PCM - which sends a signal to the Instrument Cluster to display a fixed reading of about 60% of full scale on the “Oil Pressure Gauge”. From then on, unless the pressure falls below 0.5kg/cm2, the Gauge reading doesn’t change - it has no way of knowing the actual oil pressure! This is not a problem since rotaries rarely have oil pressure problems, but it is a little misleading to the driver—he thinks he knows what the oil pressure is, but he doesn’t!"
http://www.rxtuner.com/farticles/BeautyandtheBeat.pdf
"Here’s some of information that we uncovered that we really found amusing! When you look at the instrument panel, it appears that you have an Oil Pressure Gauge. Well, not really! During our research we found that there is no Oil Pressure Sender on the engine—only an Oil Pressure Switch that turns on and off at about 0.5 kg/cm2. When you start the engine and the oil pressure reaches that amount, the switch sends a signal to the PCM - which sends a signal to the Instrument Cluster to display a fixed reading of about 60% of full scale on the “Oil Pressure Gauge”. From then on, unless the pressure falls below 0.5kg/cm2, the Gauge reading doesn’t change - it has no way of knowing the actual oil pressure! This is not a problem since rotaries rarely have oil pressure problems, but it is a little misleading to the driver—he thinks he knows what the oil pressure is, but he doesn’t!"
#10
OK, I guess the good news is that I have some pressure. The bad news is, too bad if I care to know how much Thanks anyway - one less thing to worry about - according to Mazda... Keeps us focused on the RPMs and speedometer. Hope those work
#11
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Originally Posted by bxb40
OK, I guess the good news is that I have some pressure. The bad news is, too bad if I care to know how much Thanks anyway - one less thing to worry about - according to Mazda... Keeps us focused on the RPMs and speedometer. Hope those work
#14
Ricer is Nicer.....
Not possible....
It won't be possible to use the existing sender and gauge.
Like most details on this car, the ECU gets in the way. The sender sends its 'on-or-off' signal to the computer, the computer tells the gauge cluster 'oil gauge to OK position'.
RX-7s add a new sender, between the filter and mount, and use your own gauge.
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doc
Like most details on this car, the ECU gets in the way. The sender sends its 'on-or-off' signal to the computer, the computer tells the gauge cluster 'oil gauge to OK position'.
RX-7s add a new sender, between the filter and mount, and use your own gauge.
.
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doc
#16
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Originally Posted by truemagellen
thanks guys...that explains the constantly high reading and I did noticed it NEVER moved...oh well...it is funny mazda dummed down this one on us
Yeah I notice my oil pressure gauge always reads slightly highter as well.
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