warmup
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warmup got a reaction from T4700 in closed loop lambda failsafe
I'm wondering if you can separate +/- to two parameters from Closed Loop FTrim Limit,
then we can limit the negative fuel trim in a very small range that won't cause damage.
A fail safe can't prevent a half bad o2 sensor from sending back wrong signals.
Some stock ECUs do their closed loop f-trim this way.
