Oxygen sensor

NECER

MEMBER
2004 SATURN VUE
6 CYL
FWD
90,000 MILES

Saturn 2004 Vue check engine light reads oxygen sensor
where is that and what does it do
how much to repair/replace?

Tuesday, November 23rd, 2010 AT 5:53 PM

2 Replies

SATURNTECH9

MECHANIC
30,870 POSTS

If I could get the code number that your computer has set it would really help. You have like 4 o2 sensor's two upstream and two down stream. They tell the computer how rich or lean your engine is running.

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