ever since i bought my car, when i drive it hard, (100mph+ or fast in the city) i smell something similar to the smell of a firework, gun powder, sulphury. I always sort of assumed it was clutch, but lately I think, with my suffering gas mileage, interesting engine codes and pungeant odor...i wonder if it isn't symptons of anything more along the lines of carbon buildup.

what should i be checking/changing/cleaning?

 

Cats smell like that.

 

how many miles r on the car if u have carbon buildup i think u need to have a fuel injection service

 

45k on the car, thinking about replacing the cat/header pretty quick anyway.

 

yeesh...Im getting that smell too. I hope it's not the valves acting up or miss timing...

With my luck it's cause the theifts revved the shiat out of my engine after they jacked it. One more year...thats all I ask...then CLK come my way

 

damn fuji you have about as good-a-luck with your car as me.

 

I don't know if this will help but before my last oil change i used this stuff with the brand name of "Gunk"(or something like that). I t helps get rid of the petrolium byproducts(varnishes,sludge,etc) that build up in your system. What i did was pour it in to the crankcase right before i was about to change my oil. Then you let the car run for like five minutes and then you change your oil. Now what I noticed when i got under the car to change the was kinda cool. When I started to drain my oil it came out in two different colors. There was the normal oil after 3000 miles color and there was a really dark color.
In my opinion i think the stuff helps to clean things out at least when it comes to the lubricatrion system. I am not sure if that will help get rid of the smell but it might help and it definatly could not hurt.
ronin

 

Whenever you really get on your car, it blows out alot of carbon that's built up...

that's also one way to pass emissions go drive the piss out of your car on the way to the emission station

 

that goes w/o saying


i gottachange my oil this weekend, so ill shop around for gunk...

also, andy i may get this effect because of additives in our gas that the rest of the world doesnt have, its somebull**** only SE WISKIN tried.

 

You might want to try a fuel system cleaner also(again it can't hurt)

ronin