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?
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.