Car won't start sometimes when warmed up. When I get it started I smell a lot of fuel. Seems to be getting to rich of a mixture. What possible causes could it be? The inside of tailpipe is all sooty and black.
Replaced IAC replace PCV valve, took out main relay and re-soldered board. When it sits for about five or ten minutes I have problems. But when it sits for an 2 hours or more it starts fine. Is it possible that one or more of the fuel injectors is leaking fuel into the cylinders after the engine is shut off?