when i bought my 00 si wit the b16a2 duuuh . it made the loud valve clicking noise from the motor i was almost possitive that it was the valves needing ajustment so i reset the gap with the block cold after ward they stopped bieng loud but it popped the engine light then it says misfire in 2 & 4 then a week later it was misfire in all cyc i reset them again (foo shoo correctly ) still pops light any ideas?