austinstephens

I am new to these boards, so bear with me please....My 01 Trans Am is hard to start...It seems temperature related...When it's warmer out, it starts easier, but still taked some cranking...This morning, the temp was cooler , it took a lot longer to start...Fuel pressure seems ok, I get alot out from the fuel rail valve...Is there an engine temp sensor somewhere that tells the computer to richen the fuel mixture when cold?? When the engine is warm,. it starts and runs fine...Thanks.....