johnnylt

When I accelerate heavy from a dead stop I noticed a rotten egg smell .Anybody know what causes this? Otherwise normal driving its fine

tradosauru

https://www.clublexus.com/forums/ls-...ell-fixed.html

johnnylt

Maybe changing gas

yardie876

The catalytic converter might be at the end of its life.

vcheng

If there is no CEL, then the most likely cause is a sulfur rich batch of gasoline. Fill up from another gas station, preferably Mobil or Sunoco, and see how it goes. I usually try to avoid Citgo for this reason. YMMV.

johnnylt

No check engine light on and never noticed this smell before , it's a o5 with 100,000 on it I always put shell premium in her .ill try some cheap crap like speedway or something thank you