My Newest CTS-V Tweak ;)

G

GTPprix

Club Member
Sooooo GM originally had an oil temp gauge in this thing and for some reason felt the need to remove it... That really pissed me off since a car like this really should have it so I started to dig....

What I found was pretty funny, I managed to get the Oil Temp gauge back into the IPC with a little work only to find that YES my car does have the oil temp sensor however its not wired AND they turned off the input pin and/or moved it in the ECM which further pissed me off. So long story short and a few days of on off coding I made my own custom gauge in the factory cluster that currently displays Oil Temp OR Post Intercooler IAT ;)

More to come! :D

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I had read on Cadillac Forum that there had been oil temp in the DIC and that it went away. I assumed to have known the reason it went away based on other things I know as fact. I find it interesting that there is a physical sensor there and that the oil temp still went away. The only thing I can think of is they were getting customer complaints of high oil temperatures that were actually normal temperatures from customers that have no idea how hot oil should be. Even on an entusiast type car, you still have mostly non-enthusiast buyers that don't know what's going on.
 
4 cam tbird said:
I had read on Cadillac Forum that there had been oil temp in the DIC and that it went away. I assumed to have known the reason it went away based on other things I know as fact. I find it interesting that there is a physical sensor there and that the oil temp still went away. The only thing I can think of is they were getting customer complaints of high oil temperatures that were actually normal temperatures from customers that have no idea how hot oil should be. Even on an entusiast type car, you still have mostly non-enthusiast buyers that don't know what's going on.
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The early pilot/CTF cars had it then it disappeared shortly before production not sure why or who made the call on that one but yes the sensor is still there as its integrated into the level sensor. I'm really surprised they went far enough as to turn the I/O pin off rather than just killing the diagnostics and turning the sensor selector off. Even with the sensor selector on none of the I/O pins read it and I really dont feel like going through and manually triggering a bazillion pins and reloading it each time to see if it works :\

The really weird thing is according to the service manual in a 2009 the wiring is still there as well, its also turned off in the IPC and ECM calibrations but at lease the wiring is there LOL!
 
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