Oil temp gauge using the built-in oil temp sensor
#46
if 1 is true how does the durametric pick it up plugged into the obdii port? Are there pins in there that generic readers dont use that durametric does?
for 2 - theres no way to write that into some software? can't reverse engineer whatever durametric is using...
for 2 - theres no way to write that into some software? can't reverse engineer whatever durametric is using...
#47
Nordschleife Master
Thread Starter
Yes to your first question and yes it's possible to reverse engineer durametric, which itself was reverse engineered from the Porsche scanners.
#48
Drifting
#49
Nordschleife Master
Thread Starter
#50
Great resource!
This could be very simple using the $24 Cirtcuit playground. It has an arduino and some leds. Only need to wires to the sensor.
Can probably be powered using the USB so only need a a charger for that, or bats.
Would make a nice gauge.
There is also a $5 case. You wouldn't see exact temp but I guess the range 200 - 300 is interesting. So each LED would be 10 degrees.
https://www.adafruit.com/product/3000
This could be very simple using the $24 Cirtcuit playground. It has an arduino and some leds. Only need to wires to the sensor.
Can probably be powered using the USB so only need a a charger for that, or bats.
Would make a nice gauge.
There is also a $5 case. You wouldn't see exact temp but I guess the range 200 - 300 is interesting. So each LED would be 10 degrees.
https://www.adafruit.com/product/3000
Last edited by turbogrill; 01-31-2019 at 02:34 PM. Reason: fixed link
#51
Rennlist Member
Gosh I love reading these kind of innovations, I really do. Just wish I understood it. Keep up the good work guys and when the kits come out, then I understand simple 'plug and play' technology. I pay for the kits people create without question because of your-alls fantastic determinism and I appreciate that!
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#53
Rennlist Member
Another mod I'd like to have but will never see...
#54
Burning Brakes
This is a great old thread that deserves to be revived.
@Ahsai Im guessing your pinout plug III pin 5 is referencing DME 7.8
Im looking for the correct pin on DME 5.2.2, but my wiring diagram is not clearly legible. I can see the sensor is pin 13 in engine connector X59/2, (one of the round ones in the engine compartment) but I cant read my diagram well enough to trace it back to the DME. Any advice/clues?
@Ahsai Im guessing your pinout plug III pin 5 is referencing DME 7.8
Im looking for the correct pin on DME 5.2.2, but my wiring diagram is not clearly legible. I can see the sensor is pin 13 in engine connector X59/2, (one of the round ones in the engine compartment) but I cant read my diagram well enough to trace it back to the DME. Any advice/clues?
#55
Nordschleife Master
Thread Starter
This is a great old thread that deserves to be revived.
@Ahsai Im guessing your pinout plug III pin 5 is referencing DME 7.8
Im looking for the correct pin on DME 5.2.2, but my wiring diagram is not clearly legible. I can see the sensor is pin 13 in engine connector X59/2, (one of the round ones in the engine compartment) but I cant read my diagram well enough to trace it back to the DME. Any advice/clues?
@Ahsai Im guessing your pinout plug III pin 5 is referencing DME 7.8
Im looking for the correct pin on DME 5.2.2, but my wiring diagram is not clearly legible. I can see the sensor is pin 13 in engine connector X59/2, (one of the round ones in the engine compartment) but I cant read my diagram well enough to trace it back to the DME. Any advice/clues?
#57
Burning Brakes
@ahsai: can you elaborate a bit on the circuit in post 29? I assume the 5v reference voltage does not exist in the DME, so a simple circuit will need to be created maybe using a VXO7805 or LM7805 and a couple of 10mf capacitors, the R2 is the temp sensor in the engine, and V is the gauge? so an Arduino is not needed?
#58
Nordschleife Master
Thread Starter
@ahsai: can you elaborate a bit on the circuit in post 29? I assume the 5v reference voltage does not exist in the DME, so a simple circuit will need to be created maybe using a VXO7805 or LM7805 and a couple of 10mf capacitors, the R2 is the temp sensor in the engine, and V is the gauge? so an Arduino is not needed?
#59
Pro
So the signal on pin 73 (5.2.2 DME) is just the oil level/temp sensor output? And that output is an analog NTC signal?
I'm looking to log oil temps to a race logger, but I read some thread about the output being an unreliable calculated value.
Reading RL threads can get confusing when some authors content is not accurate. What pin is the input to DME from the sump sensor?
I'm looking to log oil temps to a race logger, but I read some thread about the output being an unreliable calculated value.
Reading RL threads can get confusing when some authors content is not accurate. What pin is the input to DME from the sump sensor?
#60
Nordschleife Master
Thread Starter
So the signal on pin 73 (5.2.2 DME) is just the oil level/temp sensor output? And that output is an analog NTC signal?
I'm looking to log oil temps to a race logger, but I read some thread about the output being an unreliable calculated value.
Reading RL threads can get confusing when some authors content is not accurate. What pin is the input to DME from the sump sensor?
I'm looking to log oil temps to a race logger, but I read some thread about the output being an unreliable calculated value.
Reading RL threads can get confusing when some authors content is not accurate. What pin is the input to DME from the sump sensor?
For your purpose, you just need to program your logger to map the signal (in volts) to oil temp. I have the graph in post #15.