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Old 02-04-2018, 01:27 PM   #1
jrodri4566
Junior Member
 
Join Date: Feb 2018
Location: Fort Worth, TX
Posts: 2
Default Getting misfire codes after header install

Hello,
I recently installed some headers on my car, got a tune. And now I am throwing misfire codes: P0300, P0308. Not all the time has only happened twice so far in a 1.5 week period. Any input of what could cause this please let me know.
Thank you,
J-D
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