My CLT gauge will not read under 50 degrees Fahrenheit even when the coolant is actually 30 degrees and AIT reads the same.
I have MS1 and don't have thermistor calibration option in tuner studio.
I am thinking about buying a GM CLT sensor from diyautotune and using it instead.
Does anyone have the firmware to use the GM clt? Or how can I calibrate my CLT? It currently reads properly at higher temps but like I said, it wont read cold temperatures accurately, making cold start a hassle since I can't even tune it properly.
Thanks

 

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I think this is the process, you use the easytherm program to make the proper temperature curves.

I think the default CLT curves in MS are the same as GM CLT settings. If you swap to one of those I don't think you need to touch anything.

 

Yeah, you'll wanna download and use easytherm. There's writeups around about how to calibrate for the stock sensor. It's pnp to your stock harness, don't introduce wiring errors and extra costs by using a GM piece.

 

If this is an MSPNP Gen 1, the easiest way to do the calibration is to load the provided, pre-calibrated firmware from the MSPNP software package:

MegaSquirtPNP by DIYAutoTune.com

 

I updated the software to the latest version a few months ago. The previous version had the same problem. I ordered a new miata clt sensor so we'll see if that fixes the problem.