I have had poor fuel economy, sluggish performance, slight pinking sound when at full throttle between 1-2k rpm (only using normal octane fuel, does not seem to do it with 97-99 ron)
Had MIL light come on with 0174 lean on bank 1 and lean on bank 2.
I have collected live data at rest and at 2500 rpm...anyone technical enough to look at the long and short term fuel trims to give me an idea if it could be a vacuum or fuel delivery issue?

Thanks in advance

Adam