as per this thread..
http://www.duramaxdiesels.com/forum/showthread.php?t=39285
the GMT400 ECT, OP, and tach are currently setup as stand alones..
i know the tach is ran off the alt.. tried the alt with both wires setup in both directions.. neither worked... IDK why..
OP and ECT.. i dont have the oem versions can i piggy back the LBZ ECT and OP senders?
http://www.duramaxdiesels.com/forum/showthread.php?t=39285
the GMT400 ECT, OP, and tach are currently setup as stand alones..
i know the tach is ran off the alt.. tried the alt with both wires setup in both directions.. neither worked... IDK why..
OP and ECT.. i dont have the oem versions can i piggy back the LBZ ECT and OP senders?