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02-10-2011
OK i have been throwing a 420 code for quite awhile and now i am just getting a chance to look at it properly. if i remember correctly the car has had a u bend delete done to it so what does that mean? do i change the sensor? how hard is it to replace? which sensor is it? just wanted some info guys thanks!
02-10-2011
That could mean a few things.. Either the O2 sensor is bad (not reading) or your cat is dead. If your not feeling any power loss its probably not melted just not cleaning the air properly no clue how many miles you have but if its over 120k on the stock converter this could very well be the case. If you are having some powerloss you could have completely melted the cat giving you an increase in back pressure bogging you down
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