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scan reading questions

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Old Feb 15, 2018 | 11:51 AM
  #1  
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scan reading questions

1998 5.4 expedition that threw a p0402 and a p0306. Replacing the DPFE sensor and coil for cyl 6.


As I was checking the running scan the o2bisi(v) reading had a ? mark and the readings showed as:
.80-.855
.095-.860
.095-.790
.085-.825


are these readings normal? If not could it have something to do with the DPFE and miss fire?


thanks
 
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Old Feb 15, 2018 | 02:47 PM
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Not sure which ob2bisi reading is which, but that first one appears to be stuck rich as in trying to fuel the excess oxygen detected from the misfire. But #6 is on the driver’s side.
 
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Old Feb 15, 2018 | 07:14 PM
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Try figuring out what it is you're actually looking at, we have no idea what you actually saw since what you posted is nonsensical.
 
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Old Feb 16, 2018 | 09:45 AM
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Sorry it did not make much sense.
I have a cheap harbor frt scan tool and really do not know how to use it other than read the scan codes.
I had the scanne reading live data with the engine running and noticed one listing of o2bisi(v) had a ? mark beside it.
Not knowing what o2bisi(v) is - I thought I would ask and list the readings. I am not sure if these readings are something related to P0420 and PO306 and even if the readings were within an acceptable range.
Thanks
 
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