I have a 1989 Toyota pickup with a 3.0l that when engine is cold it is hard to start. Starter turns over fine ,but smells like its running rich till it warms up a bit. On warm days starts up and runs fine. Has no rough idle and runs smoothly. Just hard to start in the mornings. It chugging till it stays running on its on then clears up and throttle does nothing till it clears up. Smokes and smells rich till it warms up a bit then it goes away. Has new fuel pump and filter . clueless now please help.