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Challenger SRT Hellcat
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88 Posts
Discussion Starter · #1 ·
3 year old 2019 cat with 6000 miles. Bulletproof until yesterday. Started her up and got my first check engine light. I was surprised and started to image a number of worst case scenarios.

So this morning I went to my trusted local mechanic and he pulled code P0456. This code means that the ECM has detected a very small leak in the evaporative system. The leak has to appear twice in a row to cause the code to be activated by the ECM.

He cleared the code. I am relieved that it was not anything major as I hate the whole dealer service dance routine. Absolutely no impact on performance. So I ordered a scan tool to read and clear any future codes.
 

· Registered
Charger 392
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221 Posts
EVAP has been a problem in the past. There was a TSB for older models. Not sure about the newer ones. Here is the link to check:

 
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