i have a apexi safc wired to my 90 integra… and im wondering why it is flashing the 3 code on me… the map sensor is faulty… … with the safc u have to cut into the map sensor wire… and then wire it up to the safc… this is what i have done so far…
checked the map sensor plug, problem, white wire does not have any power… should be 5 v… … this is the wire that must be cut to wire up safc
i then went and checked to see if the sodered connectoins couldbe bad… they arnt… redid them anyways…
then i went and looked to see if safc was bad… swaped with friend… same problem… no voltage at wite wire in plug
when i reconnected the white wire to the ecu, instead of rerouting it to the safc, the plug read 5v…
i am open to suggestions now… i think the wires to the safc and back to the ecu might be too long… and need to be shortened… because hte signal might be too weak… or, maybe the connectoins, going to check those again… please help… desperate…t hanks, matt