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Title: Forced to change 02 sensors in pairs
Review: After seeing my 97 GS 1.8 Integra's engine light on for Code P420( insufficient Catalyst Flow),( @ 135,000 miles)the dealer advised I change the rear O2 sensor 1st. After feeding the wire out the floorboard, and locating a 7/8" wrench, it removed easily. After installing the Engine light stayed on, pointing to another code, or to the front 02 sensor. I changed the front 02 sensor, and the problem was fixed.These Denso parts are closest to Dealer only type, for less $ and so far so good !Car passed NYS Annual inspection so I know they are working right.THANK YOU !!
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