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1987 LG4 - Barometric Pressure Line?

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Old 02-24-2019, 06:02 PM
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Car: 1987 Trans Am
Engine: LG4 305
Transmission: 700R4
1987 LG4 - Barometric Pressure Line?

I think that I'm looking at the line for the barometric pressure sensor which has since broken off from whatever it was connected to. Can someone tell me where this thing should go? I've done a search but from what I gather, it's barometric pressure so it should just hang loose? But that can't be right. Also, can I drive it like this without any ill effects?





Also, I've got a hose from air cleaner hanging loose here that I just cannot figure out what to do with. It's not the one that wraps around to the heat riser. Any help with this one too would be great. Thanks!


Last edited by DoctorStoopid; 02-24-2019 at 06:23 PM.
Old 02-24-2019, 06:23 PM
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Car: 1967 Camaro, 91 z28
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Re: 1987 LG4 - Barometric Pressure Line?

What year /engine setup ?
have you looked for the vacuum diagram ?
https://www.thirdgen.org/forums/tech...grams-i-2.html

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Old 02-24-2019, 06:39 PM
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Car: 1987 Trans Am
Engine: LG4 305
Transmission: 700R4
Re: 1987 LG4 - Barometric Pressure Line?

It's a 1987 Trans Am with the LG4 and original E4ME (which needs replacing but I suppose I'll save that for a different thread).

I see that the air cleaner line plugs into port B on the carb, but I don't see anything specifically about the barometric pressure line unless that's what EFE is marked on the diagram, but I'm not sure that's correct.
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