I performed the MPFI marine intake swap on my '99 4.3 S10.
I changed the tune to 24# injectors, it drives very nice, but
I'm getting these DTCs:
[PCM] P0172 - Fuel Trim System Rich Bank 1 (Pending) (Immature)
[PCM] P0175 - Fuel Trim System Rich Bank 2 (Pending) (Immature)
What are my troubleshooting steps to try and resolve this?