In my previous threads I took steps towards troubleshooting my F1 system pressure problems: Replaced Accumulator Bulb Tightened F1 Actuator Bleed Screws Replaced F1 fluid using Launch X431 Diagnostic Tool Now finally with the X431 data logs I can show much more clearly how the problem manifests itself. Here are my preliminary graphs that detail the F1 system pressure problem. IDLE - IN NEUTRAL F1 pump actuates every 85 seconds F1 pump runs for 3-5 seconds per activation Pressure slowly tapers off Image Unavailable, Please Login 1ST GEAR ONLY (Driving continuously in circles, no shifting) F1 pump actuates every 10-12 seconds F1 pressure dissipates RAPIDLY! Image Unavailable, Please Login At this point, the next troubleshooting steps are not clear to me. Others in my previous thread have suggested that the E-Diff Solenoid should be considered next. However, I have no E-Diff warnings or other stored fault conditions. What would you look at next if you saw these graphs for your F1 system? All input is welcome.