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-   -   Exhaust overheat light (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/exhaust-overheat-light-212874/)

SleeperZzZ 08-08-03 11:51 PM

Exhaust overheat light
 
Does this light ever come on, is there some sort of sensor, is it even active?

I see it when i turn my car on, and i wanted to know if it works at all, and if anyones has ever came on

Thanks alot,
Derek

J-Rat 08-09-03 12:15 AM

Supposedly it works, I havent ever seen it illuminate though. There is an under floor sensor that triggers it off.

Jarrett

1987RX7guy 08-09-03 12:16 AM

I have seen it light of once. Don't know why the hell it would be a danger?


DANGER TO MANIFOLD!!!!!!!!

SonicRaT 08-09-03 12:17 AM

It came on in my base when the cat was clogged and glowing brighter than jrat when he see's a bottle of beer.

SonicRaT 08-09-03 12:17 AM


Originally posted by 1987RX7guy
I have seen it light of once. Don't know why the hell it would be a danger?


DANGER TO MANIFOLD!!!!!!!!

Don't mind the whore, er postwhore that is. :)

rotary>piston 08-09-03 01:10 AM

yeah, when I ran that 1000 shot of NOS it lit off, but that's probably because I forgot to double clutch :rolleyes: .
Is the exhaust overheat sensor that thing under the passenger seat bolted to the floor? My friend and I have seen it, but we couldn't ever be sure what it was for.

SonicRaT 08-09-03 01:13 AM

Yep, that's it.

SleeperZzZ 08-09-03 01:15 AM

Thanks alot

RoninAutoBoX 08-09-03 02:24 AM

LOL. If it is under the passenger seat, then you must really have to get that exhaust hotter than the fires of hell to set that bitch off. :D

SonicRaT 08-09-03 02:27 AM

Not entirely, considering the cats should be running right underneath there.

RoninAutoBoX 08-09-03 03:16 AM

Heh, right. I almost forgot. :D

Project84 08-09-03 03:46 AM

If the exhaust is hot enough to set that sensor off, you could be in danger of detonating the air/fuel mixture from a hot spot in the block before the spark plugs ignite it. Thats my theory and I'm sticking to it :D

Impreza2RX7 08-09-03 06:03 AM

yank dem cats out of your car anyway, she'll show her appreciation for it. :)

silverrotor 08-09-03 08:37 AM

I never even new the sensor worked or have heard It work until now. It was the 2nd last connection I made when I replaced my Front Engine Harness with a brand new one.

NZConvertible 08-09-03 10:03 PM

Anything that causes excessive exhaust heat can set it off, like clogged cats, improper mixtures,etc. If it turns on, don't ignore it.

FYI, JDM cars like mine don't have the sensor under the floorpan; it's fitted directly into the cat instead. This means I don't have that sensor anymore... ;)

tancred 08-10-03 12:30 AM

Yeah, I was wondering about that light? I drive til the turbo is glowing like hot coals and it never lights up...Maybe it needs some nos to check if its still functioning......heh


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