I just bought a used LR2 (my second one - first is a '08). New one is 2011. I drove it five hundred miles home without a problem. Yesterday I got a engine light, checked the code and got the 2099 (too rich post cat). Any help or ideas? Vehicle has 21,000 miles. It does have extended warranty to 60,000K miles. In case my info doesn't come up: In US, Pennsylvania, obviously a 6 cylinder gas.