On the hand controller, goto ETC, SENSOR SW CHECK, are any sensors highlighted in black?
• Make sure you disable the Boost Control Kit if you aren’t using it • Make sure you have the right airflow meter selected (if you have a non standard one) • Make sure you have correct injector settings (if you have non standard ones) • Check all fuses • Listen for clicking relays • Check for burning smells near the ECU and or inside the ECU • Inspect the ECU itself for physical damage or burn marks (open it up) Finally we have seen on a few skylines that the car works fine with the stock ecu but not the with PowerFC. It has been traced back to a missing fuse. The missing fuse is on the left side in the R33 GTST and its at position #7. According to the diagram it is Engine Control. Somehow the stock ecu works if this fuse is missing but the PowerFC doesn’t See the diagram here for “Engine Control” which is a 10AMP fuse.