most check engine codes at once record. yah!!

[dumpstafresh]

allright ive owned my svixer for almost a year now and its still running good ( aside from the ticking that there sometimes and not others). i can still eat any honda or v6 mustang around. my check engine light has been on the whole time so i decided to see if i was throwing any new codes. i have a total of 6 codes. i think at least 3 of them are new. here they are.
11: (new code)crank angle sensor. (what does this mean?)
22: knock sensor(right side) left side was recently replaced.
23: air flow meter
32: (new code)O2 sensor (right side)
37: (new code)O2 sensor (left side)
56: egr system.
What are the most important ones (im on a budget)? do you think any of these codes could have anything to do with the ticking from the right side of my engine? and i changed my water pump and timing belt all by myself (very proud thank you). do you think i could have triggered #11?
feedback would be much appreciated,thank you. oh and i have a cone air filter instead of the airbox could that effect #23. witch would effect 32 and 37 mabey?