I have a 2002 E150 5.4 triton. Keeps setting P0175 right bank rich. No drive issues no complaints . Just the light. What is puzzling is the freeze data. ST FT B1is-3.1% LT FT B1is-22% ST FT B2 -2.3% LT FT B2 is -24%. Notice both banks are - long term and short... Login to read more.