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After a day tidying wires (!) in my '87 3.2 Carerra the Porsche immobilser has taken on a life of its own. The red light stays on while the engine is running (it should go out), then cuts the engine dead after exactly ten seconds. It then flashes every second in a self-satisfied manner - which is what it should do when the immobilser is armed.
Does anyone have any ideas what might have happened?
Does anyone have any ideas what might have happened?