Help identifying o2 locations
#2
TECH Senior Member
B1 = bank 1 = cylinders 1,3,5,7 = LHS = driver side
B2 = bank 2 = cylinders 2,4,6,8 = RHS = passenger side
S1 = front sensor = pre-cat
S2 = rear sensor = post-cat
So...
B1S1 = LHS front sensor
B2S1 = RHS front sensor
B1S2 = LHS rear sensor
B2S2 = RHS rear sensor
B2 = bank 2 = cylinders 2,4,6,8 = RHS = passenger side
S1 = front sensor = pre-cat
S2 = rear sensor = post-cat
So...
B1S1 = LHS front sensor
B2S1 = RHS front sensor
B1S2 = LHS rear sensor
B2S2 = RHS rear sensor