hello again,

SAUJP tuning

so yesterday i was playing with the tune a little and threw it into closed loop to see how far off my O2 tables are, which is alot. put it back into open loop and the blm was at 138 but after closed loop it moved to 128. now i have to retune the VE cells because it was at 138 before. idles in cell 4 too. so how the heck is the blm able to move in open loop, and how can i lock the damn thing from moving?

trying to track down a low rpm cruise shake/surge that violently rocks the car at very light throttle or when exiting DFCO, and also trying to try down a frequent stall problem when warm, stall saver tables are zero'd. its a T5 car so when im backing out of a parking spot is when it happens the most. would i benefit by switching to a factory AXXD bin but keep the SAUJP mask and adx?

 

I think it is just "resetting" the BLM, the obvious clue is 128.

 

true,BUT, if it moves to say 138 while in closed loop it will stay there when placed in open loop and remain at that value until the next time closed loop is enabled. also, any other time throughout the load range it will go to 128 but return to 138 at idle. hope that explains it a little more

 

In $8D two of the sixteen BLM cells are saved and restored at key-on. There is an upper & lower limit to the restored values, set those to 128.

RBob.