Stock ECU error code 09

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Jul 10, 2015 | 02:52 PM

CompMica

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From: Indiana

Stock ECU error code 09

Just did the paperclip test on my 1993 rx7 r1 and I got error code 09 which I think is a water thermo sensor but also a engine Coolant temp sensor anybody know for sure what it is and where the sensor is located. Thanks

Jul 10, 2015 | 05:40 PM

diabolical1

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welcome to the board.

https://www.rx7club.com/3rd-generati...-codes-851414/

yes. it seems to correlate to a possible failure of the coolant temperature sensor.

Jul 10, 2015 | 06:30 PM

j9fd3s

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From: https://www2.mazda.com/en/100th/

water thermo sensor = engine coolant temp sensor. its green in the back of the water pump housing.

Jul 11, 2015 | 03:53 PM

CompMica

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From: Indiana

Thanks

I pulled out what I think is coolant temp. Sensor but the new one doesn't fit part #:SU4007 at autozone

Last edited by CompMica; Jul 11, 2015 at 06:35 PM.

Jul 19, 2015 | 12:45 PM

j9fd3s

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From: https://www2.mazda.com/en/100th/

for whatever reason the aftermarket has a lot of errors in their listings for just about everything, https://www.mazdatrix.com/93-95Electrical-Engine.htm scroll most of the way down, its the NF02-18-840