My '99 3.8 camaro just started running so rich it floods and kills itself. What sensor/sensors should i check? It ran perfect until i parked it yesterday and 4 hours later it wouldn't start.

 

pull the vacumn line off the fuel pressure regulator and see if it has fuel in it. check gas cap. yep the gas cap you should hear a release of air if the car has been running. probly noticed it at times when fueling up. its a closed system and if open can cause problems. are u getting a check engine light? if u can scann for trouble codes.

 

None of those would cause it to flood itself. I actually can't think of anything on a fuel injection system like these that would cause the car to completely flood itself... Are you sure that's what's causing it?

 

I will check that because i did have my fuel pressure regulator replaced a month ago. My ses light did come on for a few days and then went back off

 

it should have a or some trouble codes stored, get it scanned and find out what they are.