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Overheat EXH System..? why would it turn on.?

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Old 11-24-06, 02:40 PM
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Overheat EXH System..? why would it turn on.?

alright well i was driving down the freeway last night and my Overheat EXH system turned on.. at first i thought it was telling me my car was overheating.. so i turned my car off and coated to the side of the road.. let it cool down relized it was for ymy exhaust system and calmed down .. lol, so i let it sit for like 20 minutes. then started it up again. light was still on so i said **** it i need to get home i left and got home the light was still on.. went out this morning and light is STILL on.. why would this go on out of the middle of know where and not turn off..?
Old 11-24-06, 03:00 PM
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well it could go off if ur cats are clogged, but i dunno y it would stay on, but chek out ur cat n see
Old 11-24-06, 03:04 PM
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the guuy before me gutted em.. i got an exhaust on its way.
Old 11-24-06, 03:05 PM
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could the sensor be bad or something.? dont know why it would even go off in the first pace.. the motor was still pretty cool.. * when i pulled over*. all gauge were fine at normal and i even opend the hood and it was pretty cool..
Old 11-24-06, 03:44 PM
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probably someting wrong with the sensor or wiring, becuase if it was still on when you went back out to the car in the morning it's not a valid overheating exhaust situation.

BTW, the sensor is under the passenger seat, under the carpet...
Old 11-24-06, 04:24 PM
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so is it alright if i just disconnect it or something/???
Old 11-24-06, 05:41 PM
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? BTW im loving the R1 in your avatar... i got a 99 r1..
Old 11-24-06, 05:53 PM
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Honestly I'm not sure if it sinks to ground to turn on the light or opens it, so I can't answer on wether disconnecting or not will affect the light.

Also, it's quite possible the sensor is working fine and instead you have a cold solder problem with the idiot lights.

It's an old car, there are alot of possibiities.

Thanks for the compliments, I like my R1 too
Old 11-24-06, 09:08 PM
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Originally Posted by pengarufoo
BTW, the sensor is under the passenger seat, under the carpet...
is this supposed to be plugged into the exhaust pipe?? cuz if so, i dont think mine's plugged in and the light only comes on when the ign. switch is on, and when the engine stalls.
Old 11-24-06, 09:26 PM
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no from what i understand it is a heat sensor that sends a signal when the metal of the car gets to hot. ( ie. if the cat gets pluged and heats up the bottom of the car. )
Old 11-24-06, 09:38 PM
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the sensor is just bolted to the floor under the seat. it's sensing the heat of the floor over the exhaust.
Old 11-24-06, 09:41 PM
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im going to dink around with it this weekend and see what i can come up with..
Old 11-25-06, 09:35 AM
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oh ok cool - so i got nothing to worry about
Old 11-25-06, 09:39 AM
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i would say no. its probably an open circuit in the sensor wiring. you can remove the sensor if you wish.
Old 11-25-06, 03:09 PM
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sweet thanks.
Old 11-25-06, 03:23 PM
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one time, my seatblet light started randomly coming on for a few minute at a itme, only happened for like 3 days, then dissapeared, just goes to show you how weird these cars can get lol.
Old 11-25-06, 03:33 PM
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lol yea i know .. gut hey i love em
Old 11-25-06, 04:06 PM
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alright iwent to my car this morning the light was off.. ? ? lol .. if it goes off again while im driving im going to disconnect it.
Old 11-25-06, 06:09 PM
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did you ever go to think that something might need some resodering ive had problems with coolant light crap resodered boards finally went off
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