I installed a new TPS and set it, and the engine will still only start if I spray gas in the intake. It ran 30 seconds as long as I could keep spraying gas in the throttle body. I have 45 psi of fuel pressure, and not sure where to go next? Is it the injectors, or computer? I used my test light and have power to the injector red wire, and when spinning over the engine, the other wire blinks my test light when the test light is grounded.