1996 Saturn SL2 Emmissions Sensors

1996 SATURN SL2
200,000 MILES • 4 CYL • 2WD • AUTOMATIC
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TA1438
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There is a Sensor on the back side of the engine that has two vacuum port, but only one line is connected to it, which port do I use





































































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Oct 4, 2010 at 10:08 PM
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DOCFIXIT
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Hi Is this diagram correct for engine?


https://images.2carpros.com/forum/automotive_pictures/198357_Graphic_636.jpg

Let me know Thanks for donate
Oct 5, 2010 at 9:09 AM
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TA1438
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No, I have a DOHC engine annd On this diagram you can't tell which tube is top and which is bottom
Oct 5, 2010 at 11:49 AM
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DOCFIXIT
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https://images.2carpros.com/forum/automotive_pictures/198357_Graphic_642.jpg

This it? can you find part?
Oct 5, 2010 at 12:18 PM