Sensor Help
Thread Starter
Instructor
Joined: Feb 2000
Posts: 246
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From: Philadelphia Pa.
Sensor Help
Just a quick question. Is the oil temp sensor located in the right side head of an 1986 coupe? I know water temp sensor is in the left head, and oil pressure is in the back of the block.
Thanks,
Joe
Thanks,
Joe
Le Mans Master
Joined: Jul 2007
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From: Tampa Florida
Thread Starter
Instructor
Joined: Feb 2000
Posts: 246
Likes: 2
From: Philadelphia Pa.
Some times I'm just stupid. My car uses two computers, the stock one and a Accel DFI to run the engine. Because the two work independently of each other, they use two coolant temp semsors. Thanks for trying to help me,
Joe
Joe
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From: The Top of Utah
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EDIT: This, in blue, is incorrect. See post 10.
Last edited by CFI-EFI; Jun 26, 2009 at 02:53 PM.
Thread Starter
Instructor
Joined: Feb 2000
Posts: 246
Likes: 2
From: Philadelphia Pa.
The stock PCM uses the sensor to run the gauge and fans, The Accel uses a sensor to run the engine. The aux. fan does run off the left head sensor, that is corect. Thanks for all the input.
Joe
Joe
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
RACE ON!!!
EDIT: Post 5 does NOT correctly explain the gauge sending unit nor all the other stock sensors. See post 10.
Last edited by CFI-EFI; Jun 26, 2009 at 03:00 PM.
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Pro
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From: Brookfield CT NCM#522998
I'm not quite sure what all this discussion is about? The OP wanted to know what the sensor on the pass. side of the engine is that has one wire coming out of the middle of it; and it IS the EGR sensor. It doesnt run any fans, it's part of the EGR system.
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From: The Top of Utah
"The sensor in the right side head is the ECT (Engine Coolant Temperature) sensor. In the left head is the aux fan switch if you have an aux fan."
It should say: The sensor in the right side head is the temperature gauge sending unit. The ECT (Engine Coolant Temperature) sensor is in the front of the intake manifold. The aux fan switch location is correct. My apologies to all.
The discussion is about giving the OP the correct answer to his question. Which was,"Is the oil temp sensor located in the right side head of an 1986 coupe?" I am referring to the 3/8" NPT hole into the water jacket in the head between the #6 and #8 spark plugs. I am pretty sure the OP was too. In 1986 and up for several years, that is the location of the temp gauge sending unit. There is a "switch, EGR temp" that the parts book shows at the right rear of the engine, but I can't tell what it screws into. I believe it makes sure the hot exhaust gases are flowing, indicating if the EGR valve is opening when it is supposed to. That item does not install into the head. If I had the '86 FSM or a car to look at, I would tell you what that EGR switch installs into. It has to be a passage that exhaust gases pass through only when the EGR valve is open. Not the head.
Is this the end of the discussion?
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Pro
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From: Brookfield CT NCM#522998
I guess the mental image I had when he said in his second post, 'the one with the single wire coming out of the right hea' is the egr sensor on my 86. It screws into the manifold at the rear of the plenum on the right side.