So here's the story, have just had all the rocker arms, timing chain, cam followers, camshaft machined, all to get rid of the damned ticking that has plagued my poor rover for months. But now the ticking is back and worse than before the work was done. I don't know what the issue could be, and now the check engine light is on, getting a warning message that the brake fluid is low (it's not as I checked and it is full), and getting error codes P1316, P0300 and P0305, any ideas? Would be much appreciated, and I've read threads on this site so am trusting that there's someone on here who can help me out. Much appreciated.