P1151 OBD II DTC error code - Ford Forum - Enthusiast Forums for Ford Owners

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P1151 OBD II DTC error code

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  #1  
Old 08-02-2007, 07:13 PM
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Default P1151 OBD II DTC error code

HO2S Bank 2 Sen 1 Insuff. Switching Lean Mean is the DTC code. Which O2 sensor does this mean? Is it anything to worry about or was my daughter just following a Diesel truck putting out some smoke?
 
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Old 08-13-2007, 10:51 PM
Join Date: Aug 2007
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Default RE: P1151 OBD II DTC error code

You want to replace the o2 sensor opposite cyl#1 befor the cat. YesI would replace it will save some pennies in gas.
 
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Old 08-15-2007, 04:17 PM
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Default RE: P1151 OBD II DTC error code

I got this code after loading my explorer up while helping someone move. I got bad gas mileage because of the weight, and it threw the 1151 code. I reset it and did normal highway driving. The light came back and I am getting 22 mpg in my 96 Explorer V6. That is pretty much the peak of my good fuel economy. Why would I still be getting such good gas mileage?

Any info would be great.
 
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Old 08-15-2007, 07:47 PM
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Default RE: P1151 OBD II DTC error code

22 mpg?? I'd die for that. My daughter gets 14 mpg, maybe 17 if I put Marvel Mystery Oil in. If it cost 30 bucks for an O2 sensor to get 6 - 8 mpg more that wouldbe great. By the way, I reset the code and haven't seen it since.
 
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