My Dad's 1996 Ford Taurus 3.0L G, failed inspection for emissions. The results page showed codes of P0420 and 0430 which are Catalyst System Efficiency Below Threshold in Banks 1 and Banks 2. One mechanic told me that it means the catalytic converter needs to be replaced, while another mechanic said it means to just replace all four of the O2 sensors that the car has.
For starters, those two repairs are a major difference when it comes to price, the 02 sensors would be a lot less expensive of a repair, yet would that solve the problem to get his car to pass the state emissions inspection?
Second, if it's the converter, which one should I go with? I was on various car parts sites, and there's 3 different types for my Dad's car model(Taurus G), ranging from $41 all the way up to $350+. We need to get this resolved asap as he's due to take it back for reinspection very soon. The 45 day grace period is close to its end. Thanks for any help.
Monday, December 14th, 2020 AT 3:47 PM
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