CZ:DTC P1152 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK1
SENSOR1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains low.
Judge as NG when lambda value is abnormal in accordance with λ value of front
oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake
CAUTION
If the CHECK ENGINE warning light/ malfunction indicator lamp illuminates while
you are driving, have your vehicle checked/repaired by your SUBARU dealer as soon
as possible. Continued vehicle operation without having the emission control system
checked and repaired as necessary could