LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Where do these lines go?

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Old Apr 24, 2011 | 01:39 PM
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Default Where do these lines go?

I'm not sure if these are even right. They're the little plastic lines T'd off. One isnt even hooked to anything. Like I posted in a thread before, I bought the car wrecked and need help. 94 Trans Am. I can't seem to find a GOOD diagram of what they are.



also, where does this fuel line connect? It's been blocked off with a screw.
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Old Apr 24, 2011 | 01:55 PM
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http://shbox.com/1/opti_vacuum_conn.jpg

start there and the rest should be on that site also. i hope that's not the return line. follow the vacuum lines and take a picture where he had them connected. the way things are looking, you are gonna have to go through that entire car.

see if the connections match on the back of your intake to this.
http://shbox.com/1/fp_reg.jpg
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Old Apr 24, 2011 | 02:06 PM
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Thanks, I'll give it a try. The other two fuel lines are connected. I know that. Theres just something about that third one. lol
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Old Apr 24, 2011 | 02:09 PM
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id like to help but i deleted all the emissions crap a long time ago
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Old Apr 24, 2011 | 02:22 PM
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Originally Posted by Verz
id like to help but i deleted all the emissions crap a long time ago
Well The AIR Pump seems to have been deleted so I guess Thats one thing I don't have to worry about. I'm just not sure what all went with that.

The Fuel Feed and Return lines are definitely hooked up. Looking at them now.
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Old Apr 24, 2011 | 02:25 PM
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The line blocked witha screw goes to the evaporate canister, not needed once you remove emissions crap, the small T connection one line provides vacuum to the evap purge solenoid one vacuums the opti T is also not needed block it or remove the T and connect just the opti
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Old Apr 24, 2011 | 02:27 PM
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If the T remains open it will be a vac leak and cause idle issues
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Old Apr 24, 2011 | 02:51 PM
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Originally Posted by defaultexistence
The line blocked witha screw goes to the evaporate canister, not needed once you remove emissions crap, the small T connection one line provides vacuum to the evap purge solenoid one vacuums the opti T is also not needed block it or remove the T and connect just the opti
Looking at the diagrams, theres no T connection there.
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Old Apr 24, 2011 | 06:18 PM
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^^ that's because from the factory there isn't one. Originally it was for.the egr and evap only. But it looks like the installed a vented opti cap and this is where they installed a vacuum line. if egr and evap are deleted then only the opti cap vacuum needs to be connected here.
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Old Apr 24, 2011 | 08:54 PM
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You guys are awesome. Thanks for all the help. This is a different world than the 3.4L I had lol. Thanks everyone for the input
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