DDEC IV Tach???

[robertglines1]

My tach hasn't worked for me..   It is past my knowledge!  I have a ddev iv and the output at ecm K1 has no pulse.  Engine runs good.  ? do all ddec have tach pin?? Have brought tac near ecm and hooked up there.   3 connections  pulse  ground and 12v hot.  Have no problem buying new tach if I knew the problem place--ecm or tach? Engine 2000yr pre egr  out of freightlinner. 60 serries.   Any suggestions?? Greatly appreciated...    Should reader read rpm?   Bob

[luvrbus]

The 505 circuit provides out put signals for the tachometer drive on mine and that is the K-1 cavity the pulse rate is 12 pulse/rev. for the 60 series.The pro/Link will read the rpms.Your tachometer output maybe not activated. Choose "Activate ECM Outputs" from the engine menu and see if K-1 is activated if not it will display N/A on the Pro/Link    

[dickegler]

Bob, don't buy a new tach,

I have a new Dixon you can have free.  Just send me your address.

Hope everything is going well.

Dick

[robertglines1]

Dick: sent a pm with address.   Thanks!!!    Glad to see you still visit board.  Hope to see you at Evansville in Sept..   Prevost needs  to make a good showing Plus you will get to meet people that post here and other boards.  God speed my friend.  That makes twice you helped me out..Bob    Clifford; I'll plug in later and see what it shows--Again expert advise helps guide a new---be.  Well wishes to you and family.     Bob