There is some debate over the boost PID. It was made for SD trucks. That MAP signal on a SD is a voltage, but OBS is a frequency. Somehow you get a reading using the SD PID...
Some guys on the Torque forum made a custom PID for OBS boost.
97 F250HD 7.3L XCLB, E4OD, 4x4, 3.55 gears, 3" DP to 4" SP, EBPV gutted, DIY Intake, 135 kmi
E99 F250SD 7.3L CCSB, 4R110, 4x4, 177 kmi - "The Mini-Van" lol
"He that hath the Son hath life; and he that hath not the Son of God hath not life." 1 John 5:12