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-   -   Any Mazda mechanics on here? (https://discussions.texasbowhunter.com/forums/showthread.php?t=827840)

trophy8 11-22-2021 10:38 PM

Any Mazda mechanics on here?
 
Need help trouble shooting an issue on a 2016 Mazda 3 before I go get reamed at the dealer.

ECT sensor code came up. Changed it. Code won’t clear. I changed it myself. Unhooked the battery before I did it. Was told the code would clear after a few days. Did not. Mazda place used their scanner to clear it. Came right back on. Car is running fine. Want to make sure there’s no underlying issue. It’s my commuter car.

Prairieboy 11-22-2021 11:30 PM

Do you know what the code was for specifically or have the code number? Ie; open circuit, shorted to low/ high voltage, etc.

trophy8 11-22-2021 11:53 PM

Quote:

Originally Posted by Prairieboy (Post 15951379)
Do you know what the code was for specifically or have the code number? Ie; open circuit, shorted to low/ high voltage, etc.

High voltage. I forget the number.

Big Lee 11-23-2021 04:48 AM

I believe those cars have 2 ECT sensors. 1 mounted on the lower portion of the radiator. Which one did you replace?

trophy8 11-23-2021 04:11 PM

Quote:

Originally Posted by Big Lee (Post 15951419)
I believe those cars have 2 ECT sensors. 1 mounted on the lower portion of the radiator. Which one did you replace?

The one on the engine itself. Driver side. By the air intake on the head. I canít find much info. Iíll hunt for the other one.

Prairieboy 11-23-2021 10:11 PM

I believe Big Lee is correct in there being 2 ect sensors. One for the gauge/temp light and one for the fans so definitelycheck for a secondtemp sensor. Also the manufacturers are notorious for grouping sensors together on the same 5 volt reference and/or ground circuits so it could a bad ground connection, damaged wire or another sensor/connection that is actually causing the issue and the ect sensor is the next sensor in the circuit so it's the one that pops the code.

Big Lee 11-25-2021 11:18 AM

T8 did you get this fixed?

trophy8 11-25-2021 03:47 PM

I finally located the second one. I’ll fix it this weekend or Monday.

Kingfisher789 11-25-2021 04:07 PM

https://static.nhtsa.gov/odi/tsbs/20...18476-9999.pdf

White Falcon 11-25-2021 04:08 PM

Check your gas cap.

Prairieboy 11-26-2021 07:02 PM

Let us know what the outcome is.


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