Hello all,

I have a 2003 Volvo S40 with 68K and recently the check engine light came on and off but mostly on (usually when fuel tank is low and on a cold day). I took it to a repair shop and they said that the catalytic converter is bad and would cost $1400 to replace. The car is in California.

How do I know for sure it is the cat and not something else? the car is running fine and gas mileage is normal. If it is the cat, do you know of a good after market branch that is California certified that you would recommend?

Thanks in advance!!!!

 

If it's the cat here you go,
http://www.magnaflow.com/02catalytic...ayproducts.asp
Might be the o2 sensor?

 

Thanks ShowTek - Magnaflow only have the front cat, does anybody know where i can find the rear cat just in case and does anybody have experienced with Bosch O2 sensor? Thanks

 

My 2003 S40 (171K miles) also needs a catalytic converter but it has needed it for about 30K. When I go to replace the front one I'll be changing the O2 sensors at the same time. Have you looked on eBay. The one at Magnaflow costs over $1000 but on eBay it's less than $300.

 

Hello tr_car_nut, is your check engine light go on and off currently? How do you know that you need to replace the front cat? any performance issues? Saw the Magnaflow in Amazon - great deal. Thanks