Engine Performance problem
1999 Mercury Sable 6 cyl Front Wheel Drive Automatic 85000 miles
Check enginger light illuminated, took to Advance Auto for a scan and got P1151 and P1152 code.
P1151 Lack of HO2S21 switch - sensor indicates lean
P1152 Lack of HO2S21 switch - sensor indicates rich
So can I assume getting this indication means the O2 sensor has failed?
Friday, November 27th, 2009 AT 8:25 AM