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Microtech tach source needed to start car?

Old 03-25-07, 08:13 PM
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tach source needed to start car?

I know with the Haltech it needs a rpm signal to fire
I noticed the blue/white wire off my LTX8 ecu is not connected
hence no cracking rpms showing on the handset and the car will not start

I got bosch coils
hook it up to one of the trailings?

but the question for future refrence
does the MT need a RPm signal to run?

Last edited by kabooski; 03-25-07 at 08:21 PM.
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Old 03-27-07, 07:00 AM
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The blue/white is a tach output only so it is hooked up to your tachometer. You should always get a rpm reading, but since you are not then my guess it that the CAS wires are hooked up wrong. You using a Turbo II CAS or the third gen magnets?
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Old 03-30-07, 10:04 PM
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stevenoz is correct, the CAS is your tach input(multiple pulses per revolution) to the ECU and the other wire is the output to your guage(one pulse per revolution).
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Old 03-31-07, 07:12 AM
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gotcha thanks .... hmm oops i had the gas tank near empty hehe
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