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need help grounding!

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Old 09-06-11, 12:01 PM
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need help grounding!

I have a 87 turbo 2 and i have the 3800 rpm stumble i found a old service
news about is and it tells me to run a ground from the boost sensor but i cant
fiqure out which wire of the 4 is the ground please anyone know i would love the help im a noob with rx7's

thanks!
Old 09-06-11, 12:07 PM
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Black/White is battery voltage w/key to on. Brown/Red would be close to 2.5 volts w/key to on. Brown/White should have 5 volts w/key to on. The fourth wire is the ground.
Old 09-06-11, 12:08 PM
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http://www.aaroncake.net/rx-7/grounding.htm

from this article all the way at the bottom it is the brown/black wire
Old 09-06-11, 08:10 PM
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thanks!!! this helped alot!!
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