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P0141 Diagnostic Trouble Code Discussion for September 2007

Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Performance

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Trouble Ticket Help Requests for DTC P0141
Help Request Posted
1999 Mercury Villager Estate 3.3L MIL Lamp on VIN: 4M2XV11T7X
P0141: Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction. Hi guy's i took over this villager w/ o2 heater codes b1s1+b1s2 And a knock sensor code, cleared codes + only po135 came back,so replaced b1s1 o2 And not only this code came back again but after 2nd drive cycle the po325{knock code} came back. I checked 12volt...
September 25, 2007