Does a 2004 malibu 2.2 have both upstream and downstream o2 sensors?
Tuesday, September 11th, 2007 AT 11:23 AM
1 Reply
GARFIELD
MECHANIC
197 POSTS
Yes all cars that are ODB II compliant do have an upstream(before the catalitic converter) and one after the converter(or possibly mounted in the outlet side of the converter).