Three days ago my car became difficult to start. It would take 3 attempts to get it going. It feels like it is starving for gas. Check engine light came on and my scan tool said code PO103. I pulled the MAF sensor and cleaned it and the contacts (both looked very clean when I pulled them). It got better for the first few starts then it resumed it's missing and stuttering as I was driving today. Finally, this afternoon it stuttered and died by the side of the road and a smell of sweet exhaust and stinky sulfur filled the cabin. It wouldn't start after waiting 10 min. but it sounds like it wants to.
I would really appreciate any feedback. Thanks.

 

Recheck the codes could very well be a bad MAF.

 

I'm with Tech on that one. Your symptoms sound just like what happened to our 850. Turned out to be bad MAF and a broken vacuum line. That's where I would start.

 

Yes, it was a bad sensor. I got the new one today and all is OK. Thank you for your input.
I still have a slight smell of exhaust in the cabin after driving it today with the windows open. Could that be from residual unburned gasses in the cat converter?

 

Yes it could very well be.

 

I had been getting the odors inside the cabin of my 850 and have been trying to think of what could be the cause. I too may need to replace my MAF sensor but I realized today that the odor only happens when I put the car in sport mode and push it to higher rpms. That said, im now thinking that the smell is from the transmission and torque converter, maybe a good flush will help fix my problem.

 

Bad sensor? What sensor? MAF?