I need urgent help for two days my Audi 80 V6 bj 92doesn’t jump anymore it’s somewhere to drive the fuel pump when I turn on the ignition I don’t hear any buzzing… when I connect the pump to 12 volts runs the boom ?? Can it lie at the subsequently built-in immobilizer ? It was already installed… The KP relay is also fine … what can it be for? Do you have a circuit diagram ? Greetings Chris