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  1. J

    02 sensor problems

    Im getting three codes for the o2 sensors. P0135,P0141, and P0155. The fuse in the box is good and I am getting power to all the sensors. I checked it with my multimeter. The codes are saying there is a fault or malfunction with all the sensors. Anyone have any ideas?
  2. J

    Many trouble codes

    I have a 99 explorer sport im working on and I have 5 different codes to deal with. P1409 P1451 P0135 P0141 P0155 I know the last 3 codes deal with the O2 Sensor heater circuit on all 3 sensors, but I dont know what would be wrong. I have been searching a little bit but cant...
  3. J

    Swapping a 97 ohv to a 99

    My explorer has a head gasket leak with 136,000 miles on it. Starts and runs but is a little rough. I have a motor lined up to buy out of a 1999 explorer that was slightly rolled. The motor has very lows miles and should work perfect. Im just wondering what problems I may run into swapping them...
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