Reply To: GT650R Fuel Pump Fault
As you can see, it’s all pointing back to the pump itself. Perharps the relay is now dodgy as it was caused to start wanning due to the pump seizing up before ? – if the relay overspikes , that could trigger the ECU to get upset again.
Usually we don’t want too much current than necessary to flow along the lines , if the pump isn’t working properly or jams , it “might” be the case that the wires get additional “resistance” in the lines as the pump is resistant to keep the energy flowing in a circuit , so where to dump the extra energy in the harness ? => Relay! , it might pop or bypass itself to the ECU or injectors.
(hence it also say in pic the harness is something to look at also) but do keep an eye on the injectors though and test them according to service manual limits as they themselves may trigger c41 + c32 + c33 saying “Injector signal is interrupted continuous by 16 times or more
when ECU confirm injector running surge at each combustion
chamber, C32 or C33 is indicated.
Injector, wiring / coupler connection, power supply to the
injector.”