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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: RA28 tacho signal
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Thu, 26 May 2005 15:17
 
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It sounds like you wired it up wrong. My factory tacho in my GA61 took the signal from the negative side of the coil. The 1GGTE doesn't work like this. It has a 5V output like the 7MGTE, probably so Toyota didn't have to modify the dash electrics. You'll need a tacho booster ala the Sixworks one to get it working. After that, you'll need it recalibrated for a 6 
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