hello guys
iam new here and here is my new car
its e36 316i 1999

well i got it recently it seem's to have some problems

today i replaced the fuel , air filter , oil and oil filter .

it got new rotors and brake pads


the car was in a bad situation the oil was too old the filter were almost clogged .

but now it runs smothly the engine sounds nice and good

i didnt drove it yet for a long distance because i didnt registered it till now

so i thought why not to check if there is any codes

i got three codes :

P0111
P0101
P0120

any ideas .

thanks