OK, so the trouble never ends.....

Anyhow, i did a headgasket on this car two months ago. I have been noticing lately the following:

1-The rpm seems to fluctuate at idle when in P. it is more prominent when in drive while at a traffic light....

2-For the first few seconds after the car starts, it smells really bad. No smoke or anything, but the smell is strong from the exhaust. no oil dripping on the exhaust, no drips on the floor, i don't think this is burning oil smell either.,,,,

3-There is oil in my intake. i also found that my IAT sensor is covered with soot and oil. i did clean my intake really well when i changed the head gasket,,,seems the issue is back....

so are these issues related? I am very worried about the smell part the most. the car has a bit more oil than it should as i have not gotten a chance to take out the extra oil yet (it is at the full mark)....i also feel that he gas millage is not good.......

I am tired of this car already....any ideas?

thanks,

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1993 300E, 2.8 M104 .....