MGV101 Posted September 7, 2018 Report Share Posted September 7, 2018 I am rewiring my engine and building a custom loom for my MR2 with a Gen 3 3S-GTE engine and will be running it on a G4+ Fury. While studying the existing wiring, I noted the system uses a circuit opening relay for the fuel pump where there is a second coil to switch on power to the fuel pump while the engine is cranking. As I am deleting/replacing the whole fuse box along with the relay, will it work if I just use an ordinary relay for the fuel pump? The relay will be powered by an key-on power source with the coil grounded to the ECU fuel pump output. Will the G4+ switch on the relay during cranking to provide power to the fuel pump? Thank you! Quote Link to comment Share on other sites More sharing options...
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