Possible Cause

P2A01-A 

• Harness or connectors (The heated oxygen sensor 2 circuit is open or shorted.)
• Heated oxygen sensor 2

P2A01-B 

• Harness or connectors (The heated oxygen sensor 2 circuit is open or shorted.)
• Heated oxygen sensor 2
• Fuel pressure
• Direct fuel injector
• Port fuel injector