280Z Turbo Posted July 9, 2006 Share Posted July 9, 2006 I keep messing with the fuel pump relay, but I can't seem to get the fuel pump to run in "on". The + signal wire is in pin 20 of the ECU and runs to a terminal marked "COIL" on the relay. The - signal wire also runs to a "COIL" termial and is connected to pin 108. The fuel pump power wire is connected to "NO" and the power wire to the battery is connected to "COMM". I get a small amount of voltage (.62 volts) through the + signal wire and the - signal wire seems to be grounded somehow. I hotwired the pump by touching the battery and fuel pump power wires together and the pump ran fine. How do I get the pump to run in "ON"?I keep messing with the fuel pump relay, but I can't seem to get the fuel pump to run in "on". The + signal wire is in pin 20 of the ECU and runs to a terminal marked "COIL" on the relay. The - signal wire also runs to a "COIL" termial and is connected to pin 108. The fuel pump power wire is connected to "NO" and the power wire to the battery is connected to "COMM". I get a small amount of voltage (.62 volts) through the + signal wire and the - signal wire seems to be grounded somehow. I hotwired the pump by touching the battery and fuel pump power wires together and the pump ran fine. How do I get the pump to run in "ON"? I just tried pin 16 for my + signal, but still, there was no response from the fuel pump. Quote Link to comment Share on other sites More sharing options...
Careless Posted July 18, 2006 Share Posted July 18, 2006 How do I get the pump to run in "ON"?I keep messing with the fuel pump relay' date=' but I can't seem to get the fuel pump to run in "on". [/quote'] perhaps the relay is the problem? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.