You may have a blown fuse in the Base module. Take the cover off the module box and check. I think you have two or more problems. First you need to find out why your engine runs on one bank only. I maybe due to a blown fuse in the Base module, or bad injector wiring. Limp home mode doesn't shut down the cylinder bank. It just electrically disconnects throttle actuators, so all you have is mechanical connection to driver's side ETA only. This is for cyl 1- 6. The other side doesn't have any mechanical linkages and just idles. In addition, you would have to depress accelerator pedal almost 3/4 down to get any response from the engine. You can try to swap parts from left to right for troubleshooting.