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No injectore pulse + no fuel pump on 940 b230fb with maxxecu

S

simonjamet

New member
Joined
May 21, 2023
Hello everybody my car was working nice on maxxecu, then i added the last part of my build wich is the turbo, re-plugged everything at its place and now it wont run.
i have no fuel pump priming or on starter so i installed a cable on the relay to activate it manually. event with fuel pressure it don't run.
i have spark at all spark plugs but the injectors stay closed (the fuel rail is out with injectors on and no squirt happens)
all my fuzes are ok and i have re plugged the harness coule times but nothing changes.
your knowledge is precious to me, thank you.
 
Typically all of these systems are setup to have an ignition signal before they will turn on the fuel system. So even if you have spark. You need to verify via the engine interface software that you are reading an ignition signal to the ecu. Then if that is present and it's still not turning on the fuel. The ecu will also monitor engine cranking and needs a basic timing setup. If all the proper conditions are met and still no fuel turn on from the ecu then that may be the problem.
 
i have +12v on both sides of each injectors, can it still be faulty? the ecu trigger the injectors with ground, so it s probably what i'm missing right now right?
 
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