67 twin turbo dart

Thanks, when you data log do you use the high speed one or the data log tab at the top? I've been using the high speed one and it only shows ign and spark.
You need to figure out what analog input the fuel psi is connected to. Use the data log tab at the top. Make sure you are recording that analog input in the Data log Profile editor. After you collect the data, you can open the file with mega log viewer and check out everything that was recorded.