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> New CHT install question, Appears to be displaying ambient temp not engine temp
DRPHIL914
post Feb 16 2020, 06:23 PM
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Has anyone had this issue installing a Dakota Digital CHT gauge?
Red and yellow wires are connected, as are ground and power wires as instructed in directions.

Any thoughts or ideas? I went thru their trouble shooting , this issue is not addressed

Phil
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SirAndy
post Feb 16 2020, 06:31 PM
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Is that with the engine running or engine off?

(IMG:style_emoticons/default/popcorn[1].gif)
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DRPHIL914
post Feb 16 2020, 06:54 PM
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QUOTE(SirAndy @ Feb 16 2020, 07:31 PM) *

Is that with the engine running or engine off?

(IMG:style_emoticons/default/popcorn[1].gif)

(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/confused24.gif) , but seriously, yes engine on , drove yesterday about 10 miles, but was showing about 65 which is about what the temp outside was
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billh1963
post Feb 16 2020, 06:59 PM
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QUOTE(DRPHIL914 @ Feb 16 2020, 07:54 PM) *

QUOTE(SirAndy @ Feb 16 2020, 07:31 PM) *

Is that with the engine running or engine off?

(IMG:style_emoticons/default/popcorn[1].gif)

(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/confused24.gif) , but seriously, yes engine on , drove yesterday about 10 miles, but was showing about 65 which is about what the temp outside was


Fahrenheit or Celsius? Yes..should obviously be higher than that even if Celsius but could be a starting point.

Also, which cylinder are you using? Do you have the sensor that goes "under" the spark plug?
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DRPHIL914
post Feb 16 2020, 07:09 PM
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QUOTE(billh1963 @ Feb 16 2020, 07:59 PM) *

QUOTE(DRPHIL914 @ Feb 16 2020, 07:54 PM) *

QUOTE(SirAndy @ Feb 16 2020, 07:31 PM) *

Is that with the engine running or engine off?

(IMG:style_emoticons/default/popcorn[1].gif)

(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/confused24.gif) , but seriously, yes engine on , drove yesterday about 10 miles, but was showing about 65 which is about what the temp outside was


Fahrenheit or Celsius? Yes..should obviously be higher than that even if Celsius but could be a starting point.

Also, which cylinder are you using? Do you have the sensor that goes "under" the spark plug?


Yes, under the #3 plug.
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billh1963
post Feb 16 2020, 07:21 PM
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Per the troubleshooting guide, my money is on a loose or bad connection:

https://www.dakotadigital.com/pdf/odyr-11.pdf

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michael7810
post Feb 16 2020, 07:39 PM
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The extension wire can be installed backwards and it won’t work properly. There is a specific end that goes on the sensor and the other side on the gauge.
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DRPHIL914
post Feb 16 2020, 09:05 PM
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QUOTE(michael7810 @ Feb 16 2020, 08:39 PM) *

The extension wire can be installed backwards and it won’t work properly. There is a specific end that goes on the sensor and the other side on the gauge.


Thanks for the pointer and you hit it on the head. Even thought I have the wires connected yellow to yellow and red to red, that appears to in this case be backward and therefore it was only reading ambient temp not the head temp, switched the wires around at gauge, and I now have correct temp displaying.

Thanks Michael
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Porschef
post Feb 16 2020, 09:50 PM
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You will really appreciate that gauge, I hadn’t seen your post till now. Very accurate, and works well in conjunction with a wide band AFR.

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