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28/02/2022 11:14 am
Topic starter
Automatic 2008 Nissan Altima 2.4L 4 cylinder miss firing and check engine light is blinking code reader says P0303 so i changed the coil pack on cylinder 3 and its sorta still doing it not as badly.. need help please
4 Answers
1
28/02/2022 11:24 am
Blinking CEL means serious misfire, and you should shut the engine off quickly or else you can damage the cat. Did you do the replace the sparkplugs too?
0
28/02/2022 12:31 pm
try flip flopping cylinder 1's fuel injector
if the problem shifts to 301 code, most likely your fuel injector is bad
0
28/02/2022 1:09 pm
New spark plugs please.
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