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2003 Dodge Ram 1500 Question: running rough

 

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Visitor, 5.7L V8 HEMI, Duluth, MN, May 08, 2010, 04:53

i replaced the o2 sensors and plugs an wires and the check engine light is still on it says 1/1 o2sensor high voltage to circuit what else could be wrong

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    mastertech6371 May 08, 2010, 05:48
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     Master

    it depends. if it is a heater circuit, you may have replaced the correct sensor, there are 4 sensors, 2 upstream and 2 downstream, but the circuit is protected by a heater fuse which may have blown in the process.

    Roy

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    Harpoon, December 01, 2010, 23:32
     Rookie

    Where is the heater fuse and is it hard to change? What I mean is, is it in the fuse box in the engine or is it an inline fuse?

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    mastertech6371, December 02, 2010, 05:59
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     Master

    it is in the fuse box. if it was blown, more than one heater would not be working.

    Roy

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