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Thread: Commanded AFR???

  1. #41
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    hmmm, that sounds like a good idea, I'll give that a shot.....another idea I had was to make a harness from an old o2 sensor...and plug it the analog 2 output from the wideband and a ground to the fake sensor plug, so it should see the wideband in place of the factory sensor....make sense??

  2. #42
    Advanced Tuner SJSchafer's Avatar
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    Quote Originally Posted by Sunburst_SS
    hmmm, that sounds like a good idea, I'll give that a shot.....another idea I had was to make a harness from an old o2 sensor...and plug it the analog 2 output from the wideband and a ground to the fake sensor plug, so it should see the wideband in place of the factory sensor....make sense??
    I don't know about the LM-1, but the LC-1 I have has an output that you can set up as a NB to send to your ECM. I would start with my first suggestion though.
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  3. #43
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    I dont know if this will help you or not..... The other night I was messing Around with the stage 2 tune in my 07 and when dissabled the cot by raising th enable temps to max my commanded afr went to 12.5:1. I fixed it by putting the factory temps back in place and setting the adders to 0.0

  4. #44
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    hmmm, that will be something I can try today....which adders did you change???

  5. #45
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    In the fuel section under the cot tab were the enable temps are there are two other numbers that it says adds to something (sorry cant rember what) i just set the numbers to 0.0.

  6. #46
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    thanks alot, I'll give that a shot when I get home.

  7. #47
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    ok just checked. its under engine/fuel control/COT, Lean Cruise........... COT adder max, and COT adder min, i changed them both to 0.00

  8. #48
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    yes, I did as you said.....I set the temp. thresholds back to factory settings and set the Adder values to 0, and I am now commanding a 14.7:1 even with my wideband in and the factory o2 unplugged....thanks very much.

  9. #49
    HP Tuners Support
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    Quote Originally Posted by Sunburst_SS
    yes, I did as you said.....I set the temp. thresholds back to factory settings and set the Adder values to 0, and I am now commanding a 14.7:1 even with my wideband in and the factory o2 unplugged....thanks very much.
    wow, hmmmm, I actually looked at those settings and saw the thresholds set high so figured they wouldn't come into play otherwise I would've recommended the same. Glad you found the issue either way.

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