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Old 04-19-2022, 07:51 PM   #1
badstorm48
 
Drives: 2021 camaro lt1
Join Date: Dec 2021
Location: Sumter,sc
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Lt2 intake manifold

Hey everyone. So I installed the lt2 intake manifold on my Camaro today. When I went to connect the maf extension. On one side it clicked in right away. The other side it seems no matter how hard I tried to get it to click it just wouldn’t. Was wondering if anyone else had a similar issue and what did you do to fix it? I just pushed it down as far as I could and wrapped it with electrical tape. No check engine light came on so I believe it’s down enough to get a signal and it’s drives the same as the original intake manifold, but it still bothers me it not being connected all the way. Below is the extension I got which seems to be the one everyone recommends to get. Got it off of Amazon.

ICT Billet Wire Extension 24" LS Gen 4 MAP Manifold Absolute Pressure Sensor Connector LS3 OEM tooling, OEM Delphi (connector, lock, seals, and terminals WEMAP40-24
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Old 04-19-2022, 08:15 PM   #2
CreeperRS

 
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Yes, when I was doing my homie’s LT2 intake, his ITC billet wire extension was not clicking at all. I had no problem on mine, must of been a bad batch. I had to file down the little tab that locks in. I don’t have a picture to show you, but you don’t have to file down too much, only like less than 1/16th of an inch.
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Old 04-20-2022, 12:36 AM   #3
s346k


 
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i used the mid michigan harness, no issues.
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Old 04-20-2022, 12:43 AM   #4
khcoaching
 
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I had the same issue with my GPI extension. I ran a zip tie around the entire connector and though the tab. No issues, but for sure not ideal. I called GPI and they said they had never heard of this issue and didn’t have a solution….

Ken
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Old 04-20-2022, 03:12 AM   #5
red6.2
 
Drives: 2010 camaro
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it will click in... I thought at first they send me a defective one, but it will go in will enough force. You will hear in audible click.
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Old 03-20-2026, 07:52 AM   #6
Sheldor
 
Drives: 2017 Camaro SS 1LE
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Quote:
Originally Posted by s346k View Post
i used the mid michigan harness, no issues.
Do you have a link to this one? I bought the one from GPI and it does not snap in. Thanks
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Old 03-20-2026, 08:32 AM   #7
bishopts

 
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Quote:
Originally Posted by Sheldor View Post
Do you have a link to this one? I bought the one from GPI and it does not snap in. Thanks
Just so you know. I run into a lot of connections not wanting to snap and it's usually the rubber seal inside the connector. Instead of the connector sliding into it the rubber seal, it will roll up and bind. It will feel like it's bottoming out but it really isn't.
Ive got to where i put dielectric grease on most every connector i take apart. It will lube the seal and let them slide together really smoothly.

I don't know if thats the case with yours but it wouldn't hurt to try.
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Old 03-20-2026, 02:36 PM   #8
Sheldor
 
Drives: 2017 Camaro SS 1LE
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Quote:
Originally Posted by bishopts View Post
Just so you know. I run into a lot of connections not wanting to snap and it's usually the rubber seal inside the connector. Instead of the connector sliding into it the rubber seal, it will roll up and bind. It will feel like it's bottoming out but it really isn't.
Ive got to where i put dielectric grease on most every connector i take apart. It will lube the seal and let them slide together really smoothly.

I don't know if thats the case with yours but it wouldn't hurt to try.
I removed the seal altogether, and it still wouldn't snap in. I used quite a bit of force. The sensor side snaps in as it should. Gpi is sending me another harness to try
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Old 03-21-2026, 09:34 PM   #9
bishopts

 
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Quote:
Originally Posted by Sheldor View Post
I removed the seal altogether, and it still wouldn't snap in. I used quite a bit of force. The sensor side snaps in as it should. Gpi is sending me another harness to try
Ive really been thinking about this as my next mod. But i wouldn't use a adapter harness. I would either refit the intake for the sensor to be on the normal side or lengthen the harness to fit the intake. More connections are more placed for failure to me.
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Old 03-30-2026, 07:33 PM   #10
Sheldor
 
Drives: 2017 Camaro SS 1LE
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It's an extension.
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