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P1115 and 1119 indicate a problem with the heaters on the O2 sensors ahead of the main cat on both banks. P1128 and 1130 indicate both banks are over rich. Most likely issue is a wiring problem that has taken out the heaters on the O2 sensors, so I would start there first.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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