I have a 88 camaro IROC-Z 5.0L 305 tpi and there is no fuel pressure. We took out the Shrader valve and no fuel. I want to check and see if it is an electrical problem but I am encountering some problems. I can find 5 Relays under the hood. 4 are by the master cylinder, there is 2 oval relays there 1 has 4 wires (2 orange, 1 blue , 1 black) and the other has 5 wires (1 blue, 1 white, 1 orange, 1 red, 1 black) the other 2 are 4 pinj flat relays. The 5th relay is located by the battery. My question is Which relay controls the fuel pump and how do I test it. Thank you.

 

first thing to do is check the voltage at the fuel tank. heard the plug corrodes sometimes. if you have voltage it's probably the fuel pump. if not any voltage the relay