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Discussion Starter · #1 · (Edited)
Hi All, this is my first post on here. I have a 2007 LR3 and just took it through roughly 20 +/- inches of water. While there were no issues driving through it, the check engine light came on afterwards. I don't have the code yet, but was wondering if anybody knows what could be causing this? I did hear the fan hit the water, so it' possible some water got sprayed and electrical got wet. Truck is running fine, as far as I can tell.

Thanks
 

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Discussion Starter · #3 ·
Thanks! The code is PO455. "Secondary air injection system, switching valve fault: Last occurrence - single fault".
The scanner suggests the fix is to replace the fuel filler tube. I imagine there is a leak somewhere. Not sure why wading through water caused the error though. (I have been getting a "gas cap loose or missing error" before getting the check engine warning, even though the cap is tight.) I could likely start by replacing the filler tube and gas cap. Any thoughts?
 
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