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07-24-2008, 04:18 PM | #1 |
Scooby Specialist
Member#: 135812
Join Date: Dec 2006
Chapter/Region:
NESIC
Location: Griswold, CT
Vehicle:90 Miata 04 Evo Rally Car |
Rear Diff Temp Sensor...
Does anybody ever have a problem with their sensor flickering? My 04 STi has been doing this for a little while.. I am thinking it is wiring, as sometimes it will come on, sometimes it will flicker... it is totally random, and sometimes it is within a minute or two sometimes its not for awhile.
I thought I remembered seeing somethign about somebody saying a loose ground wire somewhere, but I dont recall... Anybody have any more info? And i KNOW my diff has fluid in it, & it has ZERO signs of leaks/weaps/drips.
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07-25-2008, 07:51 AM | #2 |
Scooby Specialist
Member#: 135812
Join Date: Dec 2006
Chapter/Region:
NESIC
Location: Griswold, CT
Vehicle:90 Miata 04 Evo Rally Car |
bump... any assistance?
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07-25-2008, 11:01 AM | #3 |
Scooby Specialist
Member#: 69161
Join Date: Aug 2004
Chapter/Region:
South East
Location: Orlando, FL
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My wife's STi just started doing this last night. She picked up a screw in the pass tire, so it was low on air. I thought that was causing it, but even after it was repaired the light is still flickering.
My first guess is something electrical, it just happened to coincide with the low tire pressure on one side. Looks like I know what I will be working on this weekend. |
07-26-2008, 01:50 PM | #4 |
Vendor
Member#: 111780
Join Date: Apr 2006
Chapter/Region:
MWSOC
Location: Schaumburg, IL
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Check the terminals on the sensor and connector, sometimes they get a little corrosion on them. Also check the ground terminal for corrsion.
Hope that helps -Dylan @ DS1 |
07-26-2008, 02:43 PM | #5 |
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Join Date: Aug 2004
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Location: Orlando, FL
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The ground terminal directly above the sensor was rusted pretty badly. I would have liked to take that off and clean it, but there is no way of getting that bolt off without dropping the diff, so I just cleaned it with a small wire brush and sandpaper then cleaned the wire as best I could. So far so good, but I am not impressed with that ground location so I am sure I will be either relocating or coming up with a better connection in the future. Probably next spring after another round of salt and snow....
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07-26-2008, 02:51 PM | #6 |
Scooby Specialist
Member#: 135812
Join Date: Dec 2006
Chapter/Region:
NESIC
Location: Griswold, CT
Vehicle:90 Miata 04 Evo Rally Car |
hmm... i haven't climbed underneath to look yet. Think its possible to just cut the ground wire and move it?
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07-26-2008, 04:02 PM | #7 |
Vendor
Member#: 111780
Join Date: Apr 2006
Chapter/Region:
MWSOC
Location: Schaumburg, IL
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I wouldn't cut it, but you can move it as long as it's to a clean ground.
-Dylan @ DS1 |
07-27-2008, 12:31 AM | #8 |
Scooby Specialist
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07-27-2008, 12:27 PM | #9 |
Scooby Newbie
Member#: 165728
Join Date: Dec 2007
Chapter/Region:
MWSOC
Location: Bloomington, MN
Vehicle:2005 Imperza WRX sti Blue |
I had this issue acouple months ago on my 05, the wiring had sercum to the elements ended up just replacing the whole sensor, the car was still just barly under warrenty but if i remeber from the invoice the sensor wasnt that expensive
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10-13-2008, 12:23 PM | #10 |
Scooby Newbie
Member#: 83312
Join Date: Mar 2005
Chapter/Region:
NESIC
Location: Buffalo, NY
Vehicle:05 WRX STi CGM |
I having same issue. I bought a new sensor last night, $93. I'll keep you posted.
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10-15-2008, 05:35 PM | #11 |
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Location: nomo splitting lanes LOL
Vehicle:2015 Wrx - fury kit silver duh |
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10-15-2008, 06:28 PM | #12 |
Scooby Newbie
Member#: 83312
Join Date: Mar 2005
Chapter/Region:
NESIC
Location: Buffalo, NY
Vehicle:05 WRX STi CGM |
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10-15-2008, 08:50 PM | #13 |
Scooby Guru
Member#: 92894
Join Date: Aug 2005
Chapter/Region:
BAIC
Location: nomo splitting lanes LOL
Vehicle:2015 Wrx - fury kit silver duh |
Cool mucho gracias... their cheaper then Subarugenuine parts on alot of things.
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10-27-2008, 09:26 PM | #14 |
Scooby Newbie
Member#: 83312
Join Date: Mar 2005
Chapter/Region:
NESIC
Location: Buffalo, NY
Vehicle:05 WRX STi CGM |
Spent $93 on a new sensor and it did nothing to rid this problem. I got fed up and cut the ground wire off to find it was a corroded spade lug- I had no idea it was supposed to disconnect. I wire brushed the terminal and crimped on a new spade plug. the stupid light is GONE!!!! sweet:tup:
Diagnostic hint: resistance between ground terminal and sensor case should be < 1 ohm anything more there's too much crap under there, clean it up! |
09-04-2016, 08:29 PM | #15 |
Scooby Newbie
Member#: 451309
Join Date: Jul 2016
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Had the same problem with the flickering warning light. I crawled under there and noticed how rusty the ground was. I gave it a tug and it was so corroded that the metal from the ground mount broke off in the connector. Has anybody relocated the ground? I'd replace the stock ground mount, but the bolt placement is beyond impossible to get to. Where and how would you guys relocate the new ground? Supplies needed? much thanks!
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