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MAP Compensation Table Adjustments

Practical Reflash Tuning

Relevant Module: Worked Examples > ECUFlash - Subaru > Step 4: MAF/Injector Scaling

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Once the MAF Scaling is done and we are adjusting the MAP Compensation Table how specifically do I gather the data for the histograms?

Closed loop?

Open loop?

Is the Dyno resistance simply being brought up and down at each rpm to fill each box in the histogram?

Should the MAP Table be adjusted based on a closed loop log using "Total Trim" as well as a separate open loop wide open throttle ramp run using "AFR error Subaru"?

Hi Paul. I gave a detailed response to your questions in the other thread but yes, you're pretty much right on the money. Easy to do on a dyno but still very much doable on the street.

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