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My 4runner is SAS'd with manual locking hubs. Are the ADD solenoids needed for this swap. If I don't install them, am I gonna end up getting a CEL malfunction code?
I have replaced my ADD differential with a non-ADD one. None of the VSV's are there either. I don't have a SAS (hopefully soon!!) so no, you don't need them.
the ADD solenoids are part of the body and the ecu could careless. no codes man. Not really sure why there is a pin for 4wd even going to the ecu? maybe it alters fuel mapping or something?