Nick Posted March 16, 2017 Report Posted March 16, 2017 Hi everyoneSo im soon to be getting my A70 supra running after a long build time.Im currently looking into the wiring required to convert the speedo from mechanical cable to a full electrical system controlled by the ECU.Currently from factory there is a speedo cable connected to a optical sensor behind the dash that has a pulsed 5V 20 tooth wheel arrangementThe gearbox sensor i have is a factory toyota item that pulses 4 times per rotation and works fine with 5VI haven't powered up the LinkECU yet as im still sorting the last of the required wiring so i am abit unfamiliar in the functions of what the Link can dobut my question is can i use the 4pulse sender and use the link to bump it up to a 20 pulse (multiply by 5) so the dash will read correctly?Then i can adjust the gain on the link to get a accurate speedo calibrated via gps or similar?ThanksNick Quote
Adamw Posted March 16, 2017 Report Posted March 16, 2017 Yes G4+ can do a speedo frequency out put signal. Provided your speedos requirements are within the limits of what the ecu can provide. You say 20 pulses but over what period? 20 pulses per meter? Quote
Nick Posted March 16, 2017 Author Report Posted March 16, 2017 HI there thanks for the reply.Its 20 pulses per one revolution of the speedo cableAs for distance traveled by the vehicle to rotate the cable one revolution i haven't tested that yet Quote
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