My brake and charge (battery) indicators are illuminated and I thought that the issue was the alternator. So I had just swapped it and they are still on. A very big part of my issue is my fuel pump isn't pumping when the ignition is turned to the 'ON' position and does not start. I remedied the starting by bypassing 12v power to the fuel pump so it can deliver fuel to the rail now and run the engine; but both lights are still illuminated while running. I just have bought a fuel relay and will conduct the swap soon. Just wondering if there are any issues that I might be missing regarding the lights.
GT-SR5 4AGE Engine. Running Lp Fuel pump > surge tank > Hp fuel pump > fuel rail > surge tank. Everything else is stock.
Brake and Battery Lights on
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Keishi-Roku
- Posts: 6
- Joined: Fri Jan 11, 2013 10:25 pm
Re: Brake and Battery Lights on
okay did some hunting and the fuel pump relay is supposed to be powered by the BaTT, +B1 and +B leads from the ECU. that's how the swap electrical went so that's what im dealing with. So my main relay might be bad or my ECU but I already have swapped the ECU upon discovery and that was a no go. So maybe the main relay or efi main relay is my issue. I did notice a break in my 12v line from the battery just now so i'll splice that and see if that remedies the issue. I'll update this as I go.
From what i found my wiring goes:
[things before or coming into ECU] > Main Relay and EFI main relay > [ECU] +B1 +B and BaTT (combined to one wire) > Fuel Pump Relay > Fuel pump via blue and black stripe wire
From what i found my wiring goes:
[things before or coming into ECU] > Main Relay and EFI main relay > [ECU] +B1 +B and BaTT (combined to one wire) > Fuel Pump Relay > Fuel pump via blue and black stripe wire
Re: Brake and Battery Lights on
The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
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Keishi-Roku
- Posts: 6
- Joined: Fri Jan 11, 2013 10:25 pm
Re: Brake and Battery Lights on
Alright so i've had this fixed for a while and it holds up. so get this. the +B post on teh alternator had a line going to the battery fuses. Following those lines is where that break in the wiring that i was talking about was. after changing the main relay and the repairing the break i was able to fix the issue. but get this. when i initially tried to repair that line it actually didnt work. i believe the main relay busted and warranted a replacement one. lucky found one at o'rilleys. So problem solved. the issue was the main relay and the alternator line going to the battery fuses.