Quote:
Originally Posted by Stoolie
Hmm - on further reading, the plugs might be a bit foul - from time to time the wife has mentioned a strong smell of petrol when I start up (I'm long gone in a cloud of dust, so don't smell it!) - that may lead to a hot Cat?
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OH you better believe it!!
Unburned fuel enters the cat [it runs at 1500 degrees F, I think~] and of course, burns. This can cause the cat to glow red hot. Most cars have a metal guard under the cat so that the car won't set grass, weeds, and perhaps asphalt on fire if something like a coil fails.
My car came without cats from the factory. In 2000 I bought a pair of S4 cats from 928 Intl, and my car, which ran rich for years [finally figured it out], finally melted one of the substrates and partially plugged the device. $500 down the toilet~
Word to the wise: fix your rich condition or your cat will be destroyed.
N