recently my check engine light came on. Using my meter light code i found meter light code 21 on scan tool code P0140. Since the car had 119,000 miles and I decided to replace all of the o2 sensors(four of them) i then cleared the code using the scan tool. The check engine light stays off, until i drive 50 miles or further. The scan tool then says "Down stream 025 stays at center" Can you help me on how to fix this problem or what to do? Thank you
May 27, 2016 at 11:14 AM
