2006 Suzuki Verona Engine noise

Hell, my question is that my engine is still consistently making the ticking sound, can you help? I bought the car from college, he was selling it cheap because it had a ticking sound coming from engine, I put my ear to the engine sound, it was coming from the of the valve cover between cylinder 3 and 4 so then I thought dirty lifters, well I went to the part store and got some motor medic follow the directions hoping that would solve the issue sound as consist ant as was before I flushed it out, there no engine light on so decided to check for codes anyway and this is what I found p0101, p2070, p0128, p0354, p0304