For 3 years I have had my 2008 Pontiac grand Prix and just recently bought a new car and have given this car to my son as his first car since he only drives around town.He has put a lot of money into it already and the last thing this car needs is to pass NJ inspection. The code seems to refer to the catalytic converter. I have replaced both O2 sensors, and a bunch of other ones but still the code remains. My son bought a bottle of cataclean last week and the light still hasnt gone away. Im still not convinced the problem is the CC because there is no rotten egg smell and a bunch of other tests that they say to try dont prove its bad either. But the auto places we have brought it to insist it is. This car has just about 195k miles on it and not sure how much more life it has. How much would a new CC cost if I bought the part and did it myself? its not a welded on one, it looks like its just clamped on. Is there any "hacks" that could be done to make it pass emissions? What's your thought?
Thanks
John
