1996 Jaguar XJ6 2 Wheel Drive Type Automatic 137,600 miles I was told by the jag dealer that I needed 2 upstream oxygen sensors and this is why my check engine light is on. I looked and the car has 4 two near the bottom of the manifold pipe and two closer to the front. They say it's the upstream one's I need. Which one's are the up stream? Do I have to get the car scanned again after I replace them or does the light go off after I drive it a while?
Tuesday, November 9th, 2010 AT 8:37 PM