Thread: P0420 code
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Old 01-26-2013, 08:02 PM   #15
L695speed
 
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Join Date: Apr 2009
Location: Andover, NJ
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Yeah Bill, I think the hot weather may have been a contributing factor to me getting through emissions. However, the light still comes on even in hot weather. So in my case its luck of the draw. With the number of other problems (some are pretty major), I am just gonna drive it til I don't feel comfortable with it anymore, then park it til I can trade it in. My car has 228K miles on the clock, and its 13 years old. I can buy another one for not much more than the cost of the parts I'd need to bring this one back to what it was.

Anyway, if the OP is intent on replacing sensors, I'd go OEM to be on the safe side and hope it works out for you. Agree with others, worst case you'd have to replace the cat. A number of forums swear by the OEM parts being the make or break when it comes to fixing something like this. Aftermarket parts as we all know are usually nowhere near what the OEM stuff is when it comes to sensors.
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