The sensors on bank 1 and 2 are going out the check engine light came on and the shows they are running too lean.
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1997 Lincoln Town Car Question: 02Sensors
Answer #1ghostima96 December 26, 2010, 15:15Technician
If both are running lean it can be caused by a vacuum leak or low fuel pressure
DaveJHM December 26, 2010, 22:17Master
I'll only add to ghostima96 that it could also be a Mass Air Flow sensor (MAF).
Please, do not just replace the two O2 sensors...it won't help.