INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

Another help a guy build an LS thread

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Old Apr 20, 2025 | 12:42 AM
  #21  
1FastBrick's Avatar
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From: JunkYard
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Attached is the DTC chart for P0341.Sounds like an Electromagnetic interference issue...

You should look at the Freeze frame failure and see when this code occurs.

Considering you had a P0342 and a P0343 which is Signal Low and Signal High codes you could have a pin fitment issue at the connector or a wiring issue.
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File Type: pdf
P0341 GM diagnostics.pdf (152.8 KB, 18 views)
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Old Apr 23, 2025 | 09:22 AM
  #22  
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@slowburb,

Nice work getting everything up and running! Sounds like @1FastBrick has you headed in the right direction with the DTCs. There is always a hiccup or two when taking on a project like this, so it's nothing out of the ordinary.
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