everytime i go to correct something in my pfc it says interface error.What is casuing this? Every now and then the red light on the Data logger box will turn on when i turn the car to acc..

 

There's obviously a problem between the Datalogit and the computer, that's what gives you an interface error. Check to make sure they are running on the same port. You can change the port settings in your Device Manager on your laptop.

 

i had this problem and switched to com port 3. yet i cannot load the current map off the pfc... what am i doing wrong here. i was at first getting the error 76 code accompanied by the "interface error". now i have it set to com 3 port and it has no errors but i cannot read the map that im currently have. i never used the pfc before. i need to load a new map in for my startup on the new motor. please help! thanks