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2002 Toyota Sequoia P0325 Knock Sensor Malfunction Bnk 1 or Single Sensor

edited November -1 in Repair and Maintenance
My 2002 Sequoia's check engine light came on. Computer code is P0325. Cleared it cranked back up and the check engine light came back on. Is this some-thing Seafoam or a new Fuel Filter will fix. How difficult is it to access this sensor? Where is it located? Is there one or two sensors?


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