I got a DL1 in the group buy that cbender kindly organised. Now waiting for my for my first track day I am slowly hooking up all the things I want to log.

Today I tapped the rpm cable at the ECU and ran it into the DL1 rpm input. Dead easy and seems to work ok, however, there is a difference of 200rpm in the data that the DL1 logs and that the dash displays. (200rpm more on the dash)

Do I have some setting incorrect? Is this normal?

My setting is under Data -> Vehicle Options -> RPM & Speed pickup -> Ignition pulses per revolution = 2

 

how do you know? we don't actually get to 9k rpms anyone w/ a VAFC will tell you that.

The DL1 is probably correct

 

It's pretty typical that the dash is slightly off. If you've ever worked with an OBD2 scan tool you can see that difference between what the ECU sees and what the dash displays.

 

Thanks guys, I will not worry abt it then.