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Underbody braces, turbos and more!

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PostPosted: Mon Jul 27, 2015 10:16 am 
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Joined: Sun Feb 08, 2009 2:47 pm
Posts: 355
Location: Richmond, BC, Canada
I have a 1990 Firefly turbo, my radiator fan didn't turn on and causing overheat. I had my thermostat replace a year ago. try the jumper wire method for the fan and it works, so I assume it's time to change the coolant temp sensor.

is the photo below marked correct? I went to Lordco to get a replacement sensor, the sensor I got is a 2 pin sensor which is different then the one in pic. I've check RockAuto.com and it shows the same sensor.
Am I looking at the wrong location? Or there's 2 different type of sensor in G10T engine?


Image

want to know where does this CTS goes

Image

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1992 Geo Metro Convertible (with mk2 g10t)


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PostPosted: Tue Jul 28, 2015 8:11 am 
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Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
Sorry, don't know MK2
But if it's similar to my MK1 then the smaller one on the left
is for the needle/bar dash gauge and the one on the right is
for the ECM.
For MK1, we have the fan switch on the thermostat housing,
you may want to check there or keep poking around.


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PostPosted: Tue Jul 28, 2015 8:18 am 
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a.k.a Bum head
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Joined: Mon May 31, 2004 5:29 pm
Posts: 3157
Location: London, ON
It's been a while, but check the throttle body for a sensor. Might just be for cars with AC, but check anyway.

Keep in mind that a lot of the so-called Mk2 parts listed in their reference catalogs are actually Mk1 parts that shouldn't be listed. The reason, I figure, is because the Mk2 cars were never available in the US and the catalogs are all based on US models and someone presumed that the Mk2 engine was the same as the Mk1.


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PostPosted: Tue Jul 28, 2015 9:43 am 
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Joined: Sun Feb 08, 2009 2:47 pm
Posts: 355
Location: Richmond, BC, Canada
got a change to look at the FSM and Haynes manual, both only shows the 2 sensor I found, so is that mean I don't need that 2-pin CTS? :?:

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1992 Geo Metro Convertible (with mk2 g10t)


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