Having an issue with pin C2 33 controlling my high speed fans. Harness functions fine, when the wire to high relay is grounded high fan activates. Using the scan tool functional test however, have an issue. Command the high fan relay on and get a continuous, rapid clicking of the relay. The a/c recirculate selection box is greyed out and will not let me alter the setting like most other newer trucks. Anyone have any ideas other than finding a friend with EFI Live to fix it, which is actually not a bad idea since I can gain lean cruise at the same time. Do not mean that in an offensive way, but it has been my experience that HP Tuners has never allowed this change and the EFI Live guys seem to be able to make the E-Fan swap function perfectly well, even without adding the pressure sensor.