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tach signal output wire????

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Old 03-06-2010, 05:03 PM
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Default tach signal output wire????

i put the 99 model ls1 and 6 speed in a mustang and i still have a tach signal output wire that i dont have hooked up

where do i hook the tach signal wire?????????
i put the ls1 gauges in the car if this makes a difference

please help
Old 03-06-2010, 06:13 PM
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Red PCM connector pin #10 White wire.
Old 03-06-2010, 08:49 PM
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yeah i got that........
where does it go from there?
from the computer to where? there is no place on the gauge cluster for that wire
Old 03-06-2010, 09:21 PM
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PM me your email and I can send you the schematics for your mustang. Be sure to include the year.
Old 03-06-2010, 09:46 PM
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pm sent
Old 03-07-2010, 03:51 AM
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The tach wire goes to the EBCM, so the gauges are not getting that signal straight from the pcm. This may also be the case for the speedo. That could be the reason yours are not working.
Old 05-30-2010, 07:31 AM
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