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What the.....Error code 455 but not 543 850

Hey guys.

A few days ago the check engine light came on and today I had a chance to pick up an OBD2 reader. The code that came up was 455. After doing some searching it looks like it was a missfire code for cylinder 5, but it looks like for everyone else besides getting 455 people get 543...at least 1 missfire. Now if I had a missfire in at least 1 cylinder, shouldn't have I gotten that code also. I reset the code while driving about 5 minutes before I got home, and did not get it back again. I guess tomorrow will tell if it comes back or not since I will be doing a lot of driving then. But does anyone have a clue as to why I would get 1 code but no the other.

Thanks







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