Question about Cars & Trucks
When replacing your converters you can eleminate the second converter, shops in different states have different rules that may prevent them from losing the 2nd converter but you as an end user can but an aftermarket converter that will fit your car and install it yourself. This will require a sawzall or a good hacksaw to remove the old units so as to leave enough pipe coming down from the exhaust manifolds for the new converter to clamp on. Once the new converters are installed any muffler shop can hook up the rest of your system.
Posted on Mar 18, 2014
Testimonial: "THANKS KEN, I DIN'T KNOW THAT SECOND PIECE WAS ALSO A CONVERTER. I WAS THINKING SOME TYPE OF RESONATOR AND I NEEDED TO KNOW FOR SURE. THANKS AGAIN FOR YOUR HELP!"
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Posted on Jan 02, 2017
SOURCE: Check engine,2000 Nissan Maxima
yes there is two catalytic converters ???
one for any exhaust pipe bank (left & right) (bank 1 & bank 2 )
if you change the bank 1 ?? may be you need to change the bank 2 today?????
but not to change the same bank two time ???????
ask for more information
WITH MY BEST WISHES
Posted on Jul 14, 2008
If you have more than 60K miles start by replacing the Oxygen sensor(s) that is(are) installed after the catalytic converter(s).
P0421: Warm up catalyst efficiency below threshold. This code means that the computer is detecting the catalyst not warming up to full function quickly enough based on information from the post cat O2 sensor.
Good luck and hope this helps.
Posted on Aug 21, 2009
possible causes for code po420 airleaks at the exhaust manifold or in the exhaust pipes,base engine problems high engine oil or coolant usage,catalytic converter is damaged contaminated or has failed,continuos engine misfire conditions or weak or low coil out put,front HO2s or rear HO2s is contaminated with fuel or moisture,rear HO2s is loose in the mounting hole,front HO2s older aged than the rear HO2s or HO2s 1 - 2 is lazy.
Posted on Mar 31, 2011
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