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Potential Tuner
Last edited by DrCHIVES; 6 Days Ago at 07:20 PM.
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Potential Tuner
This should fix it. I also edited the MAF Airflow vs Period using the data provided by your datalog.
18 MUSTANG GT 5.0.hpt
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Potential Tuner
Last edited by DrCHIVES; 6 Days Ago at 07:23 PM.
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Potential Tuner
Last edited by DrCHIVES; 6 Days Ago at 07:21 PM.
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Log your load and inferred exhaust/cat temp. 
You are probably seeing it try to avoid melting hot fuel-loaded cats with raw oxygen (whether you have them or not), along with protecting the O2 sensors and exhaust valve temps.
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Potential Tuner
Last edited by DrCHIVES; 6 Days Ago at 07:22 PM.
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Good, now look carefully at your logged temperatures, and then go back and look at the temperature thresholds (in the calibration file) to allow DFCO based on them.
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Potential Tuner
Last edited by DrCHIVES; 6 Days Ago at 07:22 PM.
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