Is this an EOT sensor?
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,874
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From: Sligo PA
Is this an EOT sensor?
I can't seem to find an EOT sensor anyware. My local GM dealer can't get me one and all the other local part stores just look at me like I'm stupid. So my only other choice was to pull one from a junk yard. This one is from a 89 Chevy Caprice. It was screwed in right above the oil filter. It has a three pronged plug on it. Is this what I need for a 90? I hope this new image hoasting works.
http://www.villagephotos.com/pubbrowse.asp?selected=250769
[Modified by Phobos84, 6:30 AM 5/4/2003]
http://www.villagephotos.com/pubbrowse.asp?selected=250769
[Modified by Phobos84, 6:30 AM 5/4/2003]
Burning Brakes
Joined: Feb 2000
Posts: 958
Likes: 1
From: SF Bay area, CA USA
Re: Is this an EOT sensor? (Phobos84)
Are you looking for an engine oil temp sensor? Is that what EOT is supposed to mean?
The picture is not clear enough to tell. It look similar to the smaller of the two oil pressure sending units.
The picture is not clear enough to tell. It look similar to the smaller of the two oil pressure sending units.
Thread Starter
Melting Slicks
Joined: Mar 2002
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From: Sligo PA
Re: Is this an EOT sensor? (weekendwrench)
Yes EOT is engine oil temp. They used these on the 90 and 91 vettes. I'm doing a tuned port swap on my 84 and will need to use an EOT.
Melting Slicks
Joined: Oct 2002
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From: Cincinnati Oh
Re: Is this an EOT sensor? (Phobos84)
maybe you can use the old one and just swap pigtails? Or get one from an 85-89 with the pigtail. You would, of course, have to make sure the voltages are the same but I guess they're all 5 volts.
Hope the swap goes well, I'm going to MAF tuned port myself in about a week.
Hope the swap goes well, I'm going to MAF tuned port myself in about a week.
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Re: Is this an EOT sensor? (Ramanstud)
maybe you can use the old one and just swap pigtails? Or get one from an 85-89 with the pigtail.
Thread Starter
Melting Slicks
Joined: Mar 2002
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From: Sligo PA
Re: Is this an EOT sensor? (Ray Quayle)
Okay I will need to explain a little. GM used a three blade EOT on any speed density system after they started using the 7747 and the like ECM's. I think arround 87. Systems that are speed density are the 90 and 91 vettes, 90-92 F-bodies, and anything with the newer style throttle body injection. So thats why I thought I could just use one from a throttle body injected car. They should be the same sensor but I wanted to ask here before I tried it.
I guess the worst thing that can happen is it sets a code and I will have to try something else.
I guess the worst thing that can happen is it sets a code and I will have to try something else.
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Team Owner
Joined: Mar 2000
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From: Boston, MA
Re: Is this an EOT sensor? (Phobos84)
It should be because an 87 is not a SD system it uses MAF. The 3 prong ones are used on SD systems only
Okay I will need to explain a little. GM used a three blade EOT on any speed density system after they started using the 7747 and the like ECM's. I think arround 87.
Race Director
Joined: Sep 2000
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From: The Top of Utah
Re: Is this an EOT sensor? (Phobos84)
Yes EOT is engine oil temp. They used these on the 90 and 91 vettes. I'm doing a tuned port swap on my 84 and will need to use an EOT.
RACE ON!!!
Thread Starter
Melting Slicks
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From: Sligo PA
Re: Is this an EOT sensor? (CFI-EFI)
Um, my 84 has nothing above the oil filter. I know that 7747 tbi trucks do have the 3 blade above the oil filter. The stock single blade oil temp sender on my 84 is on the rear of the block right beside the oil pressure sender.
I guess it dosen't matter what year is what and who is right or wrong. All I need to know, Will this one (the one in the picture) work for me?
I guess it dosen't matter what year is what and who is right or wrong. All I need to know, Will this one (the one in the picture) work for me?
Race Director
Joined: Sep 2000
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From: The Top of Utah
Re: Is this an EOT sensor? (Phobos84)
I just got into the oil pressure sensor hassle last week. Early (mine) '84's have a single pressure sender mounted on a pair of elbows at the top rear of the block. It is three bladed. Later '84's have an elbow with a fitting that takes two sensors. The larger oil pressure sending unit looking sensor IS the oil pressure sending unit. It has a ONE blade connection. The other sender (?) on that fitting is a switch for the fuel pressure relay. Unless, somehow you have three senders back there, the temp sensor is elsewhere. I haven't actually seen the temp sender in my car, I have on the new engine on the stand. The parts book confirms my allegations on the temp sender. The book and last weekend's fiasco, confirm the pressure sender situation. If your pressure sender is also one bladed, I think you are confusing the temp sender with the fuel relay switch. I'm only trying to help out here, and I'm sorry if I sound oppinionated, but I've just been through this. Good luck, and...
RACE ON!!!
RACE ON!!!
Thread Starter
Melting Slicks
Joined: Mar 2002
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From: Sligo PA
Re: Is this an EOT sensor? (CFI-EFI)
Your right I had the temp sensor and pressure sendor mixed up. I'm not sure what I was thinking. I never know that the 84s had a three blade plug. I have a small 2 blade and a big 1 blade on the back of the block on mine.
I figure I'll try this one and see if it works. I guess the worst that can happen it the check engine light will come on and I'll have to find another one.
I figure I'll try this one and see if it works. I guess the worst that can happen it the check engine light will come on and I'll have to find another one.
Race Director
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From: The Top of Utah
Re: Is this an EOT sensor? (Phobos84)
Only early (1st design) '84 Corvettes had the three bladed oil pressure sender. Second design '84's used the single bladed pressure sender and the two bladed fuel pump switch. The illustration in the GM Corvette parts book shows both set ups, suprisingly clearly. You shouldn't get a "check engine" light under any circumstances. Either the guage won't register (correctly) or the car will die after start up if the switch is bad. I doubt you will have any problem, though. All three part numbers are widely used through out the GM lines. Good luck, and...
RACE ON!!!
PS. I just looked at your photo. While it isn't a very clear shot, it doesn't look like either the of the two oil pressure senders. The one blade and the three blade senders are identical with the exception of the blades. Judging the location you removed that from on the donor engine, it may BE a oil TEMP sender. I would use the senders from your old engine if I were doing it. Again, Good luck.
[Modified by CFI-EFI, 9:41 PM 5/5/2003]
RACE ON!!!
PS. I just looked at your photo. While it isn't a very clear shot, it doesn't look like either the of the two oil pressure senders. The one blade and the three blade senders are identical with the exception of the blades. Judging the location you removed that from on the donor engine, it may BE a oil TEMP sender. I would use the senders from your old engine if I were doing it. Again, Good luck.
[Modified by CFI-EFI, 9:41 PM 5/5/2003]
Drifting
Joined: Nov 1999
Posts: 1,801
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From: St. Paul MN
Re: Is this an EOT sensor? (CFI-EFI)
Hay Phobos84. I got my 3 wire EOT (that's engine oil temp) sensor and the wire plug for it from my local Chev. dealer. I can't member but it wasn't very expensive at all. In case you find out that one you got doesn't work. If you want e-mail me and I'll see if they can get me another one. I don't know why your dealer looked funny at you.
