What does intake camshaft position system performance mean?

[SanBrynlee]

Intake camshaft position system performance refers to a fault in the intake camshaft position system, which may be caused by improper timing setting of the front engine camshaft, the camshaft being too advanced, mechanical jamming, or the actuator valve being stuck in the open position. The function of the camshaft is to control the opening and closing of the valves. In a variable valve timing system, the electronic camshaft adjustment valve (or oil control valve, OCV) adjusts the camshaft angle by changing the oil pressure to the camshaft adjuster (mechanical) based on instructions from the engine control module (ECM), ensuring that the valves open and close at the optimal time.