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Discussion Starter · #1 ·
Rubicon at 10k miles check engine light came on. Took it dealership they said they needed a software update for the p0300 code. Left dealership and it came back on after goining 5 miles. Took back to dealer today, and they said they need to keep it for a week. They think its the header, coil pack, wiring, and plugs?

I dont think they know what the problem is. Anyone else experienced this. Shouldn't happen on such a new vehicle. Now I'm afraid I will have other issues down the line.
 
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