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Hello again my discovery 300tdi immobilizer has triggered the fuel injector pump from working the injector pump has 7 wires to it , its a dds pump and 10as ecu system, there's no spider box in the centre of the dash it has a green alarm ecu behind the glove box, does anybody out there know how to disarm or get rid of the this pain in the ass immobiliser.

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My immobilizer locked up on my 03 maxima is there anyway wiring the ignition/ immobilized wire together to bypass nats if no what about fuel pump


You can not just wire the wires together and have it work, there needs to be a certain amount of resistance in the circuit for it to work. And it isn't the fuel pump that gets immobilized, it's the fuel injectors that will not meter.

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if engine wont turn over and its a diesel engine could have weak batteries diesel engine needs lots of cranking amps to over come cylinders high compression.

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So if your fuel pump was changed , I am sure it was calibrated, hence please check on the injectors or change them as it will be best to have this done with the new pump.
Now make sure that the plugs produce a good intensity spark, if not go back to check the triggers on the HT coils - check the trigger units- check the coils using a manual make and break, check the HT wires.
Now finally check the compression on all cylinders, check the timing of the spark . Make sure there is no overflow of fuel as this flooding will not allow the engine to fire.
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Hi.

Make sure there is voltage going to the fuel solenoid on the pump, i did the same with my landrover and it just would not start or would start and just cut out, turned out to be the wire going to the fuel solenoid was not working, just re-wired from a wire behind the dash board that supplied enough voltage, that when the landrover had started the wire then supplying voltage.

Just check by putting a multimeter on the fuel solenoid wire and turn the engine over if the voltage drops to below 12v then it`s most likely the same problem i had.

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