Shift_my vq

OK this post might be semi long. But here's all my problems. About two weeks ago I decided to run my car for ghost codes. I got an egr valve and knock sensor. Ok. I reset my ecu to see if they came back. Started my car and it was super hard to get started. Bam check engine light. I ran the code it said 4-7 crank shaft sensor. So I don't have much time right now or a place to work on my car so I take it to my buddy's shop that's a mechanic and get the crankshaft and knock sensor replaced. I go out to my car this morning and it's ****ing spewing gear oil every where. I shut the car off and dry off underneath it. NO leak unless running. I can't really pin point the leak either because it's up higher than I can see. So i run my ecu for codes and I get 1-1 camshaft sensor,4-7 crankshaft sensor, 10-5 still the egr valve. And yes my ecu was reset after the new part's where put on. Christ it's like I can't catch a break right now. And I usaly have money but I just paid 2k in cash for new dirt bike so i'm dead *** broke. What gives guys is any of this stuff connected or am I just so unlucky right now??
Oh and p.s my car is still hard to start even after the crankshaft sensor

WhiteMax96

Of course that your car is still hard to start cause your replace your knock sensor instead of replacing or looking at the EGR valve... a EGR valve who is clogged open will give you a hard time starting.

Shift_my vq

Ok sweet, I'll look into that next for sure. Any body else have something to say about the rest. And thanx whitemax96

Shift_my vq

bump come on guys I still need help