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Is this on a new kit install ? Used kit ? Your settings in the SS box may not be right . The settings need to be set up right for it to come on at a set rpm and or boost setting
no i do not have a fuel pressure gauge, but seems that there is no voltage going to the pump which could be why its runnning so lean. before the boost comes on below 4000 rpms the a/f is in the 10's, and after 5000 it runs lean.