Both the BL and INT values are limited by programmable values set by the chip maker. The stock INT limits are 100 and 150. If the INT value goes beyond one of the limits during C/L corrections, the INT value is clamped at the limit value and life goes on.
The stock BL limits are 105 and 150. After a C/L fuel correction is calculated, the BL min/max values are treated the same as with INT. Before writing (storing) a newly calculated BL value, it is clamped to the limit value. Now, if the ecm ever reads a BL value from memory that exceeds either the min or max value it will reset all the BL cells to 128. Since the BL value cannot exceed the min/max during a BLM write, reading a BL value beyond min/max indicates a corrupted number which is why the BL cells are reset.
[size=0pt]As for the percentage of correction, a value of 150 produces a 17% increase in fuel over the ideal 128 value. [/size]A value of 105 reduces the fuel by 18%.
