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-   -   How to datalog when the A/C clutch cycles (https://www.miataturbo.net/megasquirt-18/how-datalog-when-c-clutch-cycles-107292/)

Jerryg 09-04-2022 03:32 PM

How to datalog when the A/C clutch cycles
 
I'm trying to troubleshoot an A/C problem and would like to be able to datalog when the A/C clutch engages and disengages, any help would be greatly appreciated. My A/C blows cold at idle but doesn't work well while driving.

olderguy 09-04-2022 04:13 PM


Originally Posted by Jerryg (Post 1627403)
I'm trying to troubleshoot an A/C problem and would like to be able to datalog when the A/C clutch engages and disengages, any help would be greatly appreciated. My A/C blows cold at idle but doesn't work well while driving.

First thing to check is that there is no warm air coming in through the vent.

DNMakinson 09-04-2022 05:37 PM

Look at the documentation for the MS that you have (if you have a MS). It will be titled something like this: Megasquirt3_TunerStudio Lite Reference Guide. Available from MSEXTRA.com.

Find the Status Info, like this:


https://cimg2.ibsrv.net/gimg/www.mia...fd56df9c92.png
In this case, AC is called for when Status 7 = 32 (or some combination of, say 33 = 32 + 1 if you have more than one thing at a time). Thus, you would log Status 7 and look for when it jumps to 32 or higher.

DNM

Jerryg 09-04-2022 06:14 PM


Originally Posted by DNMakinson (Post 1627408)
Look at the documentation for the MS that you have (if you have a MS). It will be titled something like this: Megasquirt3_TunerStudio Lite Reference Guide. Available from MSEXTRA.com.

Find the Status Info, like this:


https://cimg2.ibsrv.net/gimg/www.mia...fd56df9c92.png
In this case, AC is called for when Status 7 = 32 (or some combination of, say 33 = 32 + 1 if you have more than one thing at a time). Thus, you would log Status 7 and look for when it jumps to 32 or higher.

DNM

that worked thanks!


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