P0102 code persists, running out of ideas..

Info:

• 2013 Chevrolet Cruze LTZ RS: 1.4 Turbo
• 120,000 miles
• Dorman Valve Cover installed
• PCV Fix Kit V3 installed

Problem:

Check engine light is on, rough idle, and the only code showing is P0102, I have replaced and done many things on the engine and the code still showing and MAF reading is 0.1g/s.

This is the list of things I've tried:

• Dorman Valve Cover and PCV Fix Kit V3 installed at the same time.
• MAF sensor replaced.
• MAF sensor Wiring harness visually inspected.
• No vacuum leaks on intercooler and tubes/hoses
• Crankcase resealed.
• Crankshaft front seal replaced.
• Oil gauge and cap O-rings replaced.

UPDATE:
Compression test results:
Cyl1: 120psi
Cyl2: 120psi
Cyl3: 120psi
Cyl4: 150psi


Any ideas?

Could it be the turbo itself? or hoping not to be the ECU?

Thank you!