I have a Toyota with a 4Y ECS engine in it that will only start after you feather the throttle pedal. It will not start, even after it is warmed up until the pedal is depressed. The engine runs great after it is started. The previous tech was messing with the throttle pedal and throttle pot, so any info on what to set them at, as a base, would be geeatly appreciated. Adjusting the throttle pot does little to nothing to alter the idle. Fuel pressure appears to be fine.