Sounds in engine, lost power and high oil pressure 2008 Silverado

What is your question?

I replaced plugs and wires. But I still have a "Chattering" noise in engine when truck is running, oil pressure is 80# pressure, and loss of power at acceleration. Engine light flashes when accelerating. The engine temp has no change. And I have no leakage at this time.

What makes this problem better or worse?

Chattering noise gets faster when accelerating

How long has your 2008 Chevrolet Silverado 1500 had this problem?

2 weeks