I purchase a DTI 3300 and started working on my truck. i finally got the pickup to fit in the hole. Then I had to wait for it to cool some to connect the sensor to the fuel line. Got it to read. Timing was 2.1 at 2000 rpm. Tried loosening up the ip bolts. The one on the passenger side is so hard to get to. I am working on a wrench but it got too dark and I’m hurting too much. I’ll work on it more in the morning. Any suggestions. I’ll start by removing the high idle solenoid. It doesn’t work anyway.