This whole process of verifying the correct sensor was quite the pain I recall. You definitely want the pre cat sensor or upstream that the ECU relies on for fuel management. I see your car is 01-S. If there is no difference between our years then 15738 will work. They were not that $$ maybe $28 a piece. Cut the original wire terminals and crimp onto new universals. At that point my p1130 went away and it hasn't thrown any codes. Have you tried swapping the sensors between the banks? This may verify the faulty or marginal one. Good luck !
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