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help! where do these lines run to???

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Old Aug 15, 2004 | 11:15 AM
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Default help! where do these lines run to???

this is a 98 ls1 i need to know where these connections i have my fingers on go, these connection are below the map sensor, thanks BTW this engine is going into a 01 blazer, so do i really need them connected?
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Old Aug 17, 2004 | 10:05 AM
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bummppp
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Old Aug 17, 2004 | 10:09 AM
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vacuum line. Probably do not need it for a conversion swap project.
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Old Aug 17, 2004 | 01:06 PM
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so it want hurt anything if i plug them off, like air/fuel ratio, or gas milage??
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Old Aug 18, 2004 | 10:56 AM
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Old Aug 18, 2004 | 06:54 PM
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Old Aug 18, 2004 | 07:19 PM
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Should be the vacuum line thats used to control the AC vents.
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Old Aug 18, 2004 | 07:49 PM
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Unless you are running the stock fuel system from an f-body you can plug that port and ditch the line. It is for the fuel evap system.

Brad
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Old Aug 18, 2004 | 10:26 PM
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Originally Posted by SquintzPallatore
Unless you are running the stock fuel system from an f-body you can plug that port and ditch the line. It is for the fuel evap system.

Brad

Connected to the MAP sensor? The EVAP should be at the front of the engine.
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Old Aug 19, 2004 | 04:13 AM
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You are right lol. Small pic and I did not take a good look. Thought it was the front of the motor.

Brad
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Old Aug 19, 2004 | 08:09 AM
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okay do any of you know how i would go about hooking these vacuum lines to my AC?
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Old Aug 19, 2004 | 09:28 AM
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The small port on the MAP sensor is for the HVAC. That controls the vents in the car for defrost and heater and A/C. If the vehical you are putting this in has vacuum controlled vents then tou can hook it up there.

After another look at that pic that hose looks like part of the PCV hose that runs to each valve cover. The complete hose will run from the driver side valvecover around the back of the intake, then split and hook into the passenger side valvecover in the rear and continue forward to the front passenger side of the intake just behind the throttle body. The PCV valve is located inline where this hose hooks up. I will post some pics tonight if you need me to.

Brad
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Old Aug 19, 2004 | 11:39 AM
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yeah if you could post some pics, that would be a really big help, thanks a bunch!!
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