E38 in a engine swap. There was no wire in the 48 slot in the X1 plug. I added the wire but there is no signal. Is there a setting in HP tuners that needs to be turned on? I have rpm showing up on my scan tool.
E38 in a engine swap. There was no wire in the 48 slot in the X1 plug. I added the wire but there is no signal. Is there a setting in HP tuners that needs to be turned on? I have rpm showing up on my scan tool.
Did you add the pull up resistor?
Yes. I tried that. I'm getting nothing from the wire when chech I g with a volt meter. I have continuity when I check the wire end to end.Originally Posted by triple4x4
Change the Tach output from Serial to Crank.
Thanks Jon. I'll check it out.
Small update. I changed the tach to crank and now have a signal. The bad news is that now as soon as the engine fires, it pegs the tach at 9k rpm. I'm hoping I just have the wrong setting in the tach. I'll check it out tomorrow and post. Should I have also changed the resolution? If so, to what?
I found this:
http://www.hptuners.com/forum/showth...ch-(autometer)
I hanged the resolution and now it works perfectly.
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