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
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
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
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