 CHT, On a 3.2 |
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| NARP74 |
 Jul 17 2022, 12:21 PM
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#1
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Senior Member  Group: Members Posts: 1,237 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains  |
My guess is this is not factory. Where should it be on a 3.2?
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| SirAndy |
Jul 17 2022, 12:54 PM
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#2
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Resident German Group: Admin Posts: 41,854 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(NARP74 @ Jul 17 2022, 11:21 AM)  My guess is this is not factory (IMG:style_emoticons/default/blink.gif) |
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| Dave_Darling |
Jul 17 2022, 03:42 PM
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#3
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914 Idiot Group: Members Posts: 15,051 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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That looks to be a ring thermocouple which would be used for a gauge. They are made to go under spark plugs, generally.
It should not have anything to do with the FI; you don't really need it. --DD |
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| emerygt350 |
Jul 18 2022, 05:42 AM
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#4
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Advanced Member Group: Members Posts: 2,470 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
It looks like it is in poor shape too. I wouldnt reuse it even if you put it where it belongs (around a spark plug). A cht gauge is a fantastic thing to have, but I wouldnt trust that one's readings.
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| Luke M |
Jul 18 2022, 07:24 AM
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#5
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Senior Member Group: Members Posts: 1,389 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States
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QUOTE(NARP74 @ Jul 17 2022, 11:21 AM) My guess is this is not factory. Where should it be on a 3.2? On a 3.2 the cht sensor screws into the side of the #3 cylinder head. Look at the sheet metal covering that rear section you should see the wire hanging through it. That is if its in a 911 and factory motronic. If not it could be covered up with the engine sheet metal . Either way look at the #3 head. |
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| emerygt350 |
Jul 18 2022, 08:35 AM
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#6
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Advanced Member Group: Members Posts: 2,470 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
QUOTE(Luke M @ Jul 18 2022, 07:24 AM) QUOTE(NARP74 @ Jul 17 2022, 11:21 AM) My guess is this is not factory. Where should it be on a 3.2? On a 3.2 the cht sensor screws into the side of the #3 cylinder head. Look at the sheet metal covering that rear section you should see the wire hanging through it. That is if its in a 911 and factory motronic. If not it could be covered up with the engine sheet metal . Either way look at the #3 head. I think we are looking at an aftermarket cht sender, not a part of the injection system. |
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| NARP74 |
Jul 18 2022, 09:02 AM
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#7
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Senior Member Group: Members Posts: 1,237 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
It's in a 914, I am guessing it is just for the gauge. I can't imagine that working for the FI. It is not a sensor or sender. I need to follow it back to see where it goes.
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| emerygt350 |
Jul 18 2022, 09:57 AM
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#8
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Advanced Member Group: Members Posts: 2,470 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
QUOTE(NARP74 @ Jul 18 2022, 09:02 AM) It's in a 914, I am guessing it is just for the gauge. I can't imagine that working for the FI. It is not a sensor or sender. I need to follow it back to see where it goes. The sender for gauge chts are exactly like that. Just a ring of metal on a wire. A special ring, and a special wire. |
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| Luke M |
Jul 18 2022, 11:51 AM
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#9
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Senior Member Group: Members Posts: 1,389 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States
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QUOTE(emerygt350 @ Jul 18 2022, 07:35 AM) QUOTE(Luke M @ Jul 18 2022, 07:24 AM) QUOTE(NARP74 @ Jul 17 2022, 11:21 AM) My guess is this is not factory. Where should it be on a 3.2? On a 3.2 the cht sensor screws into the side of the #3 cylinder head. Look at the sheet metal covering that rear section you should see the wire hanging through it. That is if its in a 911 and factory motronic. If not it could be covered up with the engine sheet metal . Either way look at the #3 head. I think we are looking at an aftermarket cht sender, not a part of the injection system. I was answering the question on the location. What the op has posted is not a factory 3.2 cht sensor nor right location. The 3.2 org cht sensor is screwed into the side of the #3 cyl head and can be accessed through the rear engine sheet metal. What is pictured could be aftermarket unit that is supposed to go under a spark plug. Check the #3 head and you'll see a section that is milled off and has a hole with threads. |
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| emerygt350 |
Jul 18 2022, 06:37 PM
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#10
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Advanced Member Group: Members Posts: 2,470 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Yes, but are you describing the location of the cht that the ecu uses or the cht a gauge would use. That there, is something a gauge would use.
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