Hey Scotty, let me first say I'm a HUGE fan your videos! My mom has a 2003 Toyota Avalon XLS fully loaded she bought in 2011 with 15,000 Miles on the odometer. It now has around 70,000 Miles. She got rear ended about a year ago and the car was written off. But she loves it so she paid the difference to have it fixed. The problem now is that every few days the engine warning lights go on and off. Also, when she drives it hard, the engine has a smell that last for about 5 or 10 minutes after shutting the car off, like sulphur or rotten eggs. Any ideas on what these problems could be? I would really appreciate your opinion! Thanks Scotty!
Maybe got some bad fuel containing sulphur?
Could be the catalytic converter or an exhaust leak causing the rotten egg smell