LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Where do these pig tails connect to from wire harness? PICS

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Old Sep 13, 2008 | 06:43 PM
  #1  
Mtxz453's Avatar
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Where do these pig tails connect to from wire harness? PICS

Everything is together and ready to start up finally but i can't figure out where these 2 leftover pigtails attach to. Pic number one has 4 prongtype openings and pic 2 has 2 kind of like the MAF pigtail. Pic one, the light blue pigtail is coming from the gray connector circled in yellow, i thought it hooked up to the TB but it ended up not fitting and being the other blue pigtail if that makes any sense. The purple MAF type pigtail comes out from underneath where the ABS module is.

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Old Sep 13, 2008 | 06:58 PM
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http://shbox.com/1/harness.htm

Click in areas to zoom in.
Old Sep 14, 2008 | 01:24 AM
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looking at your diagram, is it possible that connector could have been for AIR? And the fuel pump primer, where does that plug into? http://shbox.com/1/fuel_pump_prime.jpg
Old Sep 14, 2008 | 02:22 AM
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The pigtail circled in yellow is the connector that plugs into the Opti harness.
The last pic looks like the connector for the Air Pump.
Old Sep 14, 2008 | 02:23 AM
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It has nothing to do with the fuel pump primer. The fuel pump primer is right next to the PCM.
Old Sep 14, 2008 | 09:10 AM
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ok cool thats what i figured.. well the link i pasted in my last reply, the fuel pump primer thats circled, thats that plug into anywhere?
Old Sep 14, 2008 | 12:39 PM
  #7  
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The fuel pump prime connection does not plug into anything. Its there so you can plug in a +12V source to test the fuel pump.
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