As powerandtorque says tbh, you'll definitely hear it like that. The lift pump can fail in different ways, sometimes they just work intermittently, sometimes the pumping efficiency drops off and the car starts to cut out under high load, sometimes they start to seize up/knacker the brushes and need a smack to set them going.
Much as i trust Steve's ability as a mapper, he hasn't got a crystal ball - if there's some drivers or a module in the ecu that was getting a bit tired there's no way to know until it fails. That said, it's the most expensive thing to test fully, so check everything else first.
Tom, we already know you're hyper-sensitive to everything, i think even if you didn't buy noisy lemons all the time you'd still be able to hear every little noise lol.
Much as i trust Steve's ability as a mapper, he hasn't got a crystal ball - if there's some drivers or a module in the ecu that was getting a bit tired there's no way to know until it fails. That said, it's the most expensive thing to test fully, so check everything else first.
Tom, we already know you're hyper-sensitive to everything, i think even if you didn't buy noisy lemons all the time you'd still be able to hear every little noise lol.