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2 different problems, I think

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Old Feb 12, 2020 | 02:35 PM
  #16  
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so, finally figured out the torque app and what I should be looking at. Its not throwing any O2 sensor codes and passes all the checks for the catalytic function. Also, I logged the O2 sensor functions. This is the result. from what I've been reading, this is a good result. The temps that I took with the IR gun lead me to believe the cats are not functioning correctly but this O2 data makes me think they are. Any thoughts?
 
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Old Feb 14, 2020 | 10:03 PM
  #17  
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your bank 2 seems to be quite a bit lower.............. did you actually measure the temp increase ? and compare both sides ?
 
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Old Feb 15, 2020 | 05:40 AM
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Originally Posted by steve(ill)
your bank 2 seems to be quite a bit lower.............. did you actually measure the temp increase ? and compare both sides ?
With the scanner or the IR gun? I thought someone said to monitor the temps with the scanner but I can't figure out how to do that.
 
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Old Feb 15, 2020 | 08:30 AM
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I dont know about torque app... but i have an average Code reader and it will take a SNAP SHOT of 30 values at a specific time.. You punch a button and it records all the values at that time............. 4 of the values are converter temps in and out.
 
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Old Feb 15, 2020 | 08:35 AM
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Originally Posted by steve(ill)
I dont know about torque app... but i have an average Code reader and it will take a SNAP SHOT of 30 values at a specific time.. You punch a button and it records all the values at that time............. 4 of the values are converter temps in and out.
Hmm. I did a bit of looking around and it seems I have the inlet temp available but outlet temp is not an available sensor on my truck. It's either that or the OBD blu tooth reader I have doesn't transmit that info.
 
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Old Feb 15, 2020 | 07:25 PM
  #21  
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Originally Posted by Andrew Mandley
so, finally figured out the torque app and what I should be looking at. Its not throwing any O2 sensor codes and passes all the checks for the catalytic function. Also, I logged the O2 sensor functions. This is the result. from what I've been reading, this is a good result. The temps that I took with the IR gun lead me to believe the cats are not functioning correctly but this O2 data makes me think they are. Any thoughts?
All four of your O2 sensors are working fine.
The bank 2 cat is storing oxygen just fine.
As Steve indicated, the bank 1 cat’s ability to store oxygen is questionable.
But without a cat code I’d do a little more investigating.

Get that IR temp gun on the bank 1 cat’s input and outlet.
I’d like to see those O2 sensor voltage traces as the throttle is being aggressively blipped.
You might pull out the bank 1 upstream O2 sensor and see if that relieves back pressure enough to help the power output. Note: Don’t misinterpret more noise for more power.
 
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