Question about 1996 Mercury Sable
Does the engine code PO0430 on a 1996 Mercury Sable with 96000 miles mean anything other than replace the catalytic converter on bank two?
Yes the front O2 sensor(the one before the cat) could be lazy and cause this also.
Posted on May 25, 2009
Catalyst is contaminated or fail.also check for air leaks in exhaust manifold or exhaust pipe.check for weak coils.and bad wires and plugs anything that causes a misfire.
Posted on May 29, 2009
P0430 is bank 2 converter(drivers side) P0420 is bank one(passenger side). There are 4 o2 sensors, 2 per side. Swap all sensors side to side. If code changes to other side you have a bad sensor. If stays the same , bad converter. You can try additive in gas to clean converter. A good scan tool that graphs all sensors is easiest way to determine problem. P0420 and p0430 are the hardest to fix cheap without a proper scan tool. A decent muffler shop can cut and weld new converters cheaper than changing whole pipe
Posted on Apr 11, 2014
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Posted on Jan 02, 2017
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