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Gm 3 bar Question?

Old 09-25-2005, 12:38 PM
  #1  
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Default Gm 3 bar Question?

Can someone please tell me how to wire me gm 3 bar? Its going in my 91 civic can find a write up anywhere.
thanks
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Old 09-25-2005, 06:17 PM
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Default Re: Gm 3 bar Question?

SEARCH. This took me 30sec to find.

Pin A -- Ground ---- Honda Green/White
Pin B -- Sensor output--- Honda White
Pin C -- +5 volts ----- Honda Yellow/Red
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Old 10-03-2005, 10:43 AM
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Default Re: Gm 3 bar Question?

ok where do i find me one of these i have done some searching for about an houre and this is the first thing thats even close so what cars/trucks do they come on
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Old 10-03-2005, 10:44 AM
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Default Re: Gm 3 bar Question?

google it
only one part number is right
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Old 10-03-2005, 11:19 AM
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Default Re: Gm 3 bar Question?

Ya, you must suck!! Type in GM 3 bar in google and you get tons of ----!!!!
EBAY has tons.
Or you can go to Digigkey and get a 2.5 for about a third the price.
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Old 10-03-2005, 01:00 PM
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Default Re: Gm 3 bar Question?

see actuly im looking for the kind i have vehicles that they come on because i have acsess to all kinds of ---- at the wrecking yards around here. so i was trying to find what i can pull it off of for basicly free
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Old 10-03-2005, 06:26 PM
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Default Re: Gm 3 bar Question?

Again Google will tell you!

Basically only the Buick GN and Turbo Trans-AM. Good luck finding one of those in the Junkyard!

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Old 10-03-2005, 06:47 PM
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Default Re: Gm 3 bar Question?

I bought mine from Summit Racing online. It was a MSD 3 bar for about $55
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Old 10-03-2005, 07:03 PM
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Default Re: Gm 3 bar Question?

i can get a 2.5 from a sun bird turbo and i might go pick it up on like thirsday or friday
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Old 10-04-2005, 09:28 AM
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Default Re: Gm 3 bar Question?

Please just don't a 2.5bar is the same as the next.

Different Map Sensor output different voltages at different manifold pressures.

The Digikey Motoralla Map works. Find the manufactures web site to get the voltages vs. pressures, the you have to find the GM 2.5bars voltage vs. pressures. If they don't match, there probably wont be a .bin for you to tart with.

ALSO: There is no 2.5bar Sunbird MAP sensor. It's a 2bar which is basically no upgrade from a stock honda.
http://www.diy-efi.org/gmecm/compone...o/sensors.html
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