Changed UIM/LIM and TB gaskets. Now have a p0107 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-18-2012, 10:50 AM   #1
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Default Changed UIM/LIM and TB gaskets. Now have a p0107

So I changed my supercharger plenum/UIM gasket, LIM gasket, and TB gasket with the help of Brian. Now, my car is giving me a P0107 code or Manifold Air Pressure code. Could this have been damaged in the swap or now that there are new gaskets the pressure has changed? I mean, it could be just bad because it'* 10 years old too. I dunno.

The sensor is only $50 from O'Reilly, but where the heck is it on the motor so I can swap it?
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Old 04-18-2012, 03:36 PM   #2
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https://www.gmforum.com/trouble-shooting-test-procedures-141/map-5volt-signal-test-284386/
make sure you have your voltage and the conector is connected properly before you just replace it. the code is for low reading which could mean bad but also unplugged or wire shorted, etc.
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Old 04-18-2012, 06:20 PM   #3
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Right, but where is it on the L67? I can't find any sensors plugged into my manifold that look like what it should
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Old 04-18-2012, 07:22 PM   #4
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Also, my boost guage is stuck at 0 pounds no matter what and my oil pressure gauge will drop to 0 then go back to normal. When it drops to 0 the car kind of stutters for a second, then it'* fine.

This morning while driving it the car shut off completely while my girlfriend was driving.
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Old 04-18-2012, 07:29 PM   #5
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This is what you should be looking for....I believe you only have 1 installed. Not sure on your year/model location though. Hopefully it wasn't removed and thrown at the cat.


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Old 04-18-2012, 07:32 PM   #6
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I think that'* in the back, because anything we took off we put back.
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Old 04-18-2012, 07:37 PM   #7
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Make sure the vac line is attached at both ends, and the electrical connector.
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Old 04-18-2012, 07:49 PM   #8
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The vac line is above since its a SC motor. I found out that we left the connector(for the MAP_ un-done. Now its all melted and stuff. How do I fix that?
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Old 04-18-2012, 07:53 PM   #9
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As a temporary fix, note the pin location in relation to the MAP sensor. Melt the connector completely off, and just insert the wires into the MAP sensor and fill it with silicone caulk(the bathroom kind, its easy to remove once you get a new connector). Thats what I would do. Good luck finding one in a junk yard.
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Old 04-18-2012, 07:54 PM   #10
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So you're saying find a new connector and splice it in?
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