Low Voltage in all 4 o2s?
06-05-2009 | 12:14 AM
#1
Thread Starter
Joined: Jul 2006
Posts: 539
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From: Ft. Huachuca, AZ
Low Voltage in all 4 o2s? I checked my SES code at Advance and that's what popped up. I replaced the rear o2s last year and the codes still popped up for all 4 being bad. The battery and alternator were also replaced last year. What else should I check before I go buying $73 sensors?