Civic EG

So the other night on the way home from work i jumped on it and my check engine light came on. It threw five codes. #3, manifold absolute pressure, #6, engine coolant temp, #16, fuel injector, #22, vtec pressure solonoid, and #41, heated oxygen sensor heater. Are these codes related to each other or are they all individual problems. By the way i have a 92 hatchback dx with a d16z6. The whole harness has been changed to si. Virgin p28 I'd the ecu with I/h/e, any help would be greatly appreciated.

Was any work done to the car recently?

they are all pretty much right in the same area in the engine bay, but I don't think they would have anything to do with each other, at least not in any case I can think of, that's a crappy list of codes to have bro, start addressing them one by one I suppose and go from there, gl

No work has been done for quite some time