PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

tach signal

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Nov 17, 2004 | 12:31 PM

#1

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tach signal

does anyone know what the signal that comes off the PCM to the tach is?

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Nov 17, 2004 | 12:36 PM

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From: Lake Zurich, IL

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if your car's an 00 as your name would imply... white wire, #10 pin

I forget which connector it's on... but only 1 of them has pin 10 used ...

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Nov 17, 2004 | 12:47 PM

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FormerVendor

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Blue block IIRC

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Nov 17, 2004 | 02:30 PM

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ohh i guess i asked wrong what type of signal? is it like a 1 pulse per second does the frequency change the higher the rpms go up or does the voltage change. i had a great idea pop through my head so i need to build a circut too see if my idea actually works or if it was fart that just leaked up in the void i call a head

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Nov 18, 2004 | 10:40 AM

#5

JS

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Thats the one---------->#10 white....

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corolla, pcm, tach, toyota

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