(Noob). Does MS3 use CEL? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-29-2015, 10:52 PM   #1
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Default (Noob). Does MS3 use CEL?

Once I get MS, will my Check Engine Light still perform its usual duties?
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Old 09-29-2015, 11:11 PM   #2
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Old 09-29-2015, 11:45 PM   #3
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Some basic functionality can be implemented (eg: coming on when the engine is not running, as is expected during a smog test), but in general, no, it does not serve as a malfunction indicator. You can get a lot more information out of the ECU by plugging in your laptop rather than staring at a one-bit display.
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Old 09-30-2015, 02:43 AM   #4
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Well, it will tell you when you've got sync errors!

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Old 09-30-2015, 12:39 PM   #5
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It can also do sensor's check. I've never messed with it, but it's in TunerStudio if you look in the CanBus/TestModes menu
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Old 09-30-2015, 12:42 PM   #6
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On my MS2 I used it as a shift light. Haven't bothered trying to do the same on the MS3.
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Old 10-01-2015, 11:47 AM   #7
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MS3 does not have full on OBD2 functionality, but it can provide some basic sensor checks. See this link for details.

Megasquirt3_TunerStudio_MS_Lite_Reference-1.4 page 277
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