I have '91 Dodge Dakota with a 3.9 V6 with a TBI system that won't start. I've eliminated no spark and no fuel pressure as possibilities and have narrowed the problem down to the throttle body injectors not functioning. My problem is that while i have knowledge of most automotive systems, my experience with TBI systems is limited at best, so I'm not sure where to look to find the cause of the problem. I have inspected all fuses and electrical connections i can find/think of, and have found nothing that would cause my problem. Any help or advice would be greatly appreciated.