P0140

Tests 1 - 6:

SYMPTOM
P0140 - 1/2 O2 SENSOR STAYS AT CENTER

TEST NOTE
This symptom is diagnosed using the test P0133 - 1/1 O2 SENSOR SLOW RESPONSE.

POSSIBLE CAUSES
- Exhaust leak
- O2S sensor ground circuit voltage drop
- O2S signal circuit voltage drop
- Wiring harness intermittent problem
- O2S