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Practical Reflash Tuning Calibration

Practical Reflash Tuning

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Discussion and questions related to the course Practical Reflash Tuning

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My GM ECM is very different in the Fuel fields, I'm having a bit of a tough time. When I click on the fuel tab, I have 8 fields ( General, Oxygen Sensors, Open Loop / Base, Power Enrichment, Temperature Control, Cutoff, DFCO, Lean / Fuel Saving, and Flex Fuel ). When attempting to turn off long term fuel trims, I have completely different fields. Being very green to tuning, I cant seem to differentiate what field would be the correct field to alter. I can only assume it may be under temperature control. If anyone has any valuable input on this, I would be grateful.

I just wanted to follow up that I found the table I needed under the Fuel / Oxygen Sensor tab on this ECM. It lists a Closed Loop enable Delay table along with Long Term Fuel Trims -MIN ECT, MAX ECT to Disable the long term Fuel trims for MAF Calibration. Hope this helps others that may be confused.

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