Just curious thinking here, but where is the data for the immobiliser stored in the phase 1? In the the P2/3 where the transponder in the key has to be near the ignition barrel, then the ECU will de-immobilise and allow the engine to run, with the phase one is putting the code into the keypad effectively just doing the same - i.e. put the code in then the keypad sends the correct signal to de-immobilise the ECU? If this is the case, would that mean in a P1 effectively you can use an ECU from any other RFS engine without having to worry about "unlocking" it first?

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Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660

Good stuff! Thanks Stan. Not that I'm after a replacement ECU, it was just a random thought I had in the shower.

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Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660

Well I'd already had my obligatory shower w**k, so there was nothing else to think of.

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Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660