Why does my catalytic converter have a rotten egg smell?
A sulfur or “rotten egg” smell indicates the formation of hydrogen sulfide (H 2 S), a likely sign of catalytic converter contamination. Ammonia (NH 3) odor may also indicate poor catalyst function. If the catalytic converter’s housing is discolored or warped, there may be internal leakage or overheating.
Why does my car smell like rotten eggs?
Felt like the car was bucking (like riding a bike with a wheel out of round) and noticed a rotten egg smell. Pulled over, turned the car off for a couple of minutes, started it back up and it ran smoothly the rest of the day with no odor.
How does a check engine light work on a car?
Most new cars come with oxygen sensors. These sensors can determine if the exhaust gases are not catalyzed properly. The sensor sends information on the car’s onboard computer system, and this triggers the check engine light symbol on your dashboard. Also, in most modern cars, you’ll find codes P0420 or P0430 flashing on your screen.
Why does MY BMW N54 have a bad smell?
Most likely with the temps dropping the injectors are starting to leak giving you a bad smell with the misfire. If the index number is below a 11 you will need to replace all of them. Most likely not a HDP since the car can be restarted to run fine. Kinda of a common issue on the N54 engine hence the updated parts.
A sulfur or “rotten egg” smell indicates the formation of hydrogen sulfide (H 2 S), a likely sign of catalytic converter contamination. Ammonia (NH 3) odor may also indicate poor catalyst function. If the catalytic converter’s housing is discolored or warped, there may be internal leakage or overheating.
Felt like the car was bucking (like riding a bike with a wheel out of round) and noticed a rotten egg smell. Pulled over, turned the car off for a couple of minutes, started it back up and it ran smoothly the rest of the day with no odor.
Why does my car have a strong fuel smell?
A fire could start if the raw fuel comes in contact with the hot exhaust system or rotating engine components. If you have a car from the 1970s or earlier, a lingering fuel odor after you turn off the engine might be normal; if that odor is strong, however, don’t wait to get it checked out.
Most likely with the temps dropping the injectors are starting to leak giving you a bad smell with the misfire. If the index number is below a 11 you will need to replace all of them. Most likely not a HDP since the car can be restarted to run fine. Kinda of a common issue on the N54 engine hence the updated parts.