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my mazda mx5 keeps firing up and cutting out the fuel lines and pump and ems has been checked but to no avail the imobiliser has been checked any ideas anyone
Have you checked the fuel pressure regulating valve? it might be dumping the pressure as soon as it senses the vacuum from the running engine, try disconnecting the vacuum pipe from the regulator.
I have to say though the symptoms do sound more like an immobiliser issue!
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