2004 Mazda RX8 • 5 cylinder FWD Automatic • 91 miles

We understand that your problem is:
I own a 2004 Mazda RX8. My vehicle is currently at a Mazda dealership for repairs originally stemming from a gas odor and stalling engine. It's been there for 3-weeks. I've picked the car up 2x, Both times, told it was fixed. So far, I've paid for new coils, catalytic converters, and even a new engine. What do I do? I had the car towed back last night after having it back 1 1/2 days the gas odor returned and car stalled. Just like at the start of these problems.
November 17, 2010.

First, I believe the dealer needs to review what has been done and determine if they should be charging you for the repairs that are not fixing the problem.

Can you describe to me the smell, when you notice it, and where you are when it is noticed. Also, why was the engine replaced?