Engine Performance problem
1997 Mercury Sable 6 cyl Front Wheel Drive 136000 miles
I have a 97 Mercury Sable GS that needs to pass smog in California by the end of this month. I have an OBD-II pocket scanner and I have ran diagnostics on the car. There were 3 codes P1131- Lack of upstream heated oxygen sensor switch-sensor indicates lean(Bank no.1) P0171- System too lean (Bank no.1) & P0174- System too lean (Bank no.2) An oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). I know that all 3 of these codes is dealing with the emissions so I'm sure the car will not pass smog like this. The question I have is could you provide me with a list of steps in the order that things need to be checked and repaired? Since I will be doing the repair myself. Any help will be greatly appreciated.
have the same problem?
Monday, April 12th, 2010 AT 10:23 AM