Question about 2003 Jaguar S-Type
How do i fix code po420& po430 on 2003 jaguar s-type
Both these codes relate to Catalyst efficiency below threshold on banks 1+2. This is normally caused by a combustion fault. This fault may be shown due to a faulty sensor in either air imput or exhaust systems, Get the memory read at a dealers or good garage. If you had a serious problem the car would not drive well.
Hope this helps - good luck.
Posted on May 12, 2009
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Posted on Jan 02, 2017
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