You can do both at the same time.
Even the WBO2 signal is inverted, ie 0v=lean and 5v= rich, it can still be done by solder link on the HFS4-v3.1.
Quote:
Originally Posted by point78
I have the same WBO2 as the OP.
Are you saying that the WBO2 cannot be connected to trigger a failsafe and drop boost? (if 0V is rich and 5v is lean?)
or are you talking flow compensation?
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