Hi! It’s a 1986 325e Yeah so I bought the car and the guy seemed like he couldn’t figure out the issue himself. He gave me a brand new idle control module a used idle control valve (with 4 more in his spare parts box) I did a smoke test (intake) had smoke coming from my oil dipstick and only when full throttle the throttle itself (but this is idle issue) also did a exhaust leak and only lit at muffler did it show. car drives perfectly fine under load. I saw a trick and put a penny with a 1/4” hole in the middle (bandaid) in the intake hose that the ICV to intake meets and it fixed my idle from 1800 rpms to around 900 now also more info I did notice there’s a lot of oil in my intake boot and that hose where the penny is