What is this ?

What the heck ?

https://images.craigslist.org/00V0V_2pbUT5S2Hfv_1200x900.jpg

Pic of Ferrari 308 dash, whats with the slow down, buttons, or warning light???

Linkey no workey

In reply to DrBoost:

Fixed, I hope.

Thanks to Dean for the hot link below.

This will help

I looked it up... it is a temperature dummy light for the catalytic converters. That explains one for each bank.

It trips at 900 Celsius.

There's a really bad Magnum P.I. joke in here somewhere, I just can't find it.

Never mind, the show was bad enough in its' own right...

I think NordicSaab got it, they're a somewhat common feature on smog era cars, basically a "you're gonna set the carpet on fire and/or fail smog next time" light.

Why they'd bother with two lights is what confuses me, it doesn't matter to the driver which cat is getting hot, just that one or the other is overheated.

In reply to BrokenYugo:

Two sensors, two lights!

I've dealt with the aftereffects of a melted cat before. It was not pretty. It really does set the carpeting on fire. And this was on a modern OBD-II vehicle and cat-slagging behavior generally only happens with a dead miss, and you have to ignore not only the poor drivability but the FLASHING check engine light in order to enjoy the benefits of having to spend a couple thousand for a new catalyst as well as the problems associated with a burned-up interior.

Thats for the catalytic converters.

In reply to Klayfish:

Blasphemy

Didn't old BMWs have a warning light for the same thing labeled "reactor"?

Thermal reactors. They used to get really hot. They ate what gave the 2.7 911s its bad rep. MB used to run them just after the manifold inside the engine compartment. Nuts

In reply to markwemple:

Rotaries used them before 1981. Perfect application for them, really, as thermal reactors are only good for HC and CO, not NOx, and the engines don't hardly make any NOx but they are very good at dumping very hot partially burned fuel out of the engine.

I don't know the control strategy, but the air pump would inject preheated air (via a heat exchanger that looked just like a cat, then up the outer layer of a shockingly expensive double wall downpipe) into the reactor chamber sometimes, and other times it would dump the air pump outlet into a cooling jacket around the outside of the reactor.

Worked very well. The '80 that I had nearly baselined the emissions test equipment. It was loads cleaner than the ten year old Subaru that I had been driving.

Klayfish wrote: There's a really bad Magnum P.I. joke in here somewhere, I just can't find it. Never mind, the show was bad enough in its' own right...

You shut your dirty whore mouth!

Lol!

Fiat 124 dash.. notice the light closest to the camera

It isnt just smog era. Ferrati used them at least up to the 458. Not sure if they are on the newest cars though

Where is the Danger to Manifold light?!

FDs have an "exhaust overheat" light on the center console/arm rest area where you'd never see it if it did come on.