I have chip burning capabilities. When a data log (spreadsheet) shows a rich running engine I adjust the injector flow parameter. Often an increase in the injector flow rate will "lean" a rich running engine. For example; when most of the AFR's are consistently in the 12's I will increase the TBI injector flow rate from 61 lbs hr to 65 lbs hr and see what the data log (spreadsheet) shows. Increasing the injector flow rate will "make the computer think" less fuel is needed from the injector.
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