Calculated Oil Temp never reports hot, but I see two other values flip between -40 and numbers in the 2teens, and other 302 to numbers in the 2teens
Calculated Oil Temp never reports hot, but I see two other values flip between -40 and numbers in the 2teens, and other 302 to numbers in the 2teens
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere
Does what you are working on have an actual oil temp sensor?
No, it does not. 2009 Pontiac G8
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere
Your posted hpt has EOT sensor enabled. See [ECM] 312.Originally Posted by GrannySShifting
2011 Cadillac Escalade L94 w/LS3 valves and valve springs
if it is a G8 then Aus based all our LS in that series had an actual oil temp sensor, the low oil level sensor in sump is a 3 wire and has a oil temp built into it
Do you know if the gauge is a direct read of the sensor or if the ECM still does some additional calculations to get the displayed temps? There has been a lot of discussion on the Camaro5 forum on this through the years.
if it was a HSV with the triple gauges (oil press, oil temp, volts) then its reading the sensor, im pretty sure if it was the atari gauges (digital style) it is still sensor for the oil temp, there is also the setting for the sensor and mine is set to ''ecm cal and sensor'' mine is same as G8 but HSV GTS, but i know its all sensor as if i unplug it i get default min reading, and ive changed the oil when it was 100c deg i dumped it out and then refilled and checked oil temp and it was back down under the gauge start reading of 50c until the oil heated up again, as far as i can see mine dosnt follow coolant temp at all like the calculation would, i can also log oil temp sensor and oil temp cal and they do read different to each other, my gauge is same as oil temp sensor values
https://www.rockauto.com/en/moreinfo.php?pk=3405651
Weird thing is, I can't find that thing in any wiring diagrams.
At sensor:
screenshot.21-02-2025 04.53.51.png
At ECM:
X2 23 D-GN/YE 357 Oil Temperature Sensor Signal
X2 24 BN/RD 470 Low Reference
X2 33 BN 1174 Oil Level Switch Signal
just found this from hpt chris but copied from another forum, just explains the settings for the oil temp
Oil Temp Config lets you set how the Oil Temp is calculated and displayed the options are:
- Calc ECM (oil temp is calculated from ECT and a few other things)
- Calc ECM & Disp Sens (ECM uses calulated oil temp but gauge uses sensor measurement)
- Sens ECM (ECM uses sensor measurement if no sensor faults exist)
- Sens ECM & Disp (ECM & gauge use sensor measurement if no faults exist)
Thanks. I need to see if my Camaro have these options.
think its e38 ecu X2 pin 33 for the oil temp signal in
OK well the guy with the car insisted it didnt have one, checked the GM wiring supposedly and nothing for it (he was a dealer mechanic) so i guess i need to look through the thing myself LOL
Factory Stock 97 SS M6 13.51 @ 104.3 mph
Stock Longblock LS1 w/ 233/238 P.S.I. Cam
10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago
'99 TA trunk mounted 76mm 6 Liter
9.0s in '09 @ 153 MPH
Turbo 5.3 Volvo 740 Wagon
32psi and still winding out 5th on the highway somewhere
I can verify those cars have a 3 wire oil level/temp sender. I just finished building one.
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IRC, I struggled to find anything in the wiring diagrams when I looked a few years ago for 2010 Camaro. I think I finally found it, but don't remember for sure. If I get a chance, I'll dig this weekend.
It's not in the diagrams under Engine Controls, even though all the wiring only goes to the ECM. Also not in Gauges & Indicators.
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