Tacho output

[Fredrik Pettersson]

So im using My link to send a tacho output to my stock dme(as it sends the rpm signal over can bus).

When doing this i either need to simulate a 60-2 or a ½ signal(cam) , i wired it up to the cam sensor but since i get 6 signals for ever crank rev(i need 1 signal every other rev of the crank) i need to run a very low multiplier (0.17) and i suspect this is too low for the link to handle since my rpm gauge wont go below 1.2k rpm while driving.
Other than that it works perfect , so i ask you link gods , is there any way you could add a function to select how many pulses you want to send the techo?

http://www.youtube.com/watch?v=nNCeIXXf0po

 

Cheers // Fredrik

[Stevieturbo]

 

Can you just use a normal PWM output and see what happens ?

 

 

Or if you just need to input a 60-2 trigger, why not just use the 60-2 trigger ? Isnt that what it used originally ?

[Fredrik Pettersson]

Frankly i dont know how to set up a PWM to pulse with every other RPM.
And yes i could share the stock sensor with the dme , but then i wouldn't have any keysweep function

[williams]

hi fredrik      i have a problem like you know , i have a BMW M3 s54 engine ! RPM has an error in my car , the engine too much away a abut 1500 shows that, even if you find away to help me ! thanks