Originally Posted by Simple guy
I was just reading a post on a Chrysler forum about someone having just changed their spark plugs and O2 sensors because of noticed drop in MPG. He started getting P2096 His problem was inferior quality O2 sensors. Did you replace your OEM o2 sensors with Bosch? Do you still have the old O2 sensors?
Sure enough, I put the old O2 sensors in and it's back to running normal; however, I now have some rattling in my cats, so I'm going to start researching if I need to replace them. Any advice?
BTW, just the new spark plugs made my MPG jump from 13 to 16.