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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Check Engine light after N2MB
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<blockquote data-quote="Crazy jok3r" data-source="post: 16645630" data-attributes="member: 141324"><p>Hi,</p><p></p><p>I just installed N2MB and spark plugs, and now I’m frequently getting flashing check engine light. When the flashing light comes on which the car starts to act up and feels and sounds like the car is miss firing, and this lasts for about 30-45 seconds before everything returns to normal. I tried to see what the code was but it says there’s no codes after the check engine light was flashing. There are a couple time when the check engine light stays completely on, and won’t go out until you clear it. The spark plugs are gapped to .030, and I pulled them to make sure I didn’t mess up the measurements. I made some small gap correction to the spark plugs to see if that would help, and I need some help solving this issue.</p><p></p><p>Here are the codes I got when the check engine stayed completely on.</p><p></p><p>1st P0300, P0304, and P0307</p><p></p><p>2nd P0300, P0304, and P0307</p><p></p><p>After rechecking spark plug gaps</p><p>3rd P0300</p></blockquote><p></p>
[QUOTE="Crazy jok3r, post: 16645630, member: 141324"] Hi, I just installed N2MB and spark plugs, and now I’m frequently getting flashing check engine light. When the flashing light comes on which the car starts to act up and feels and sounds like the car is miss firing, and this lasts for about 30-45 seconds before everything returns to normal. I tried to see what the code was but it says there’s no codes after the check engine light was flashing. There are a couple time when the check engine light stays completely on, and won’t go out until you clear it. The spark plugs are gapped to .030, and I pulled them to make sure I didn’t mess up the measurements. I made some small gap correction to the spark plugs to see if that would help, and I need some help solving this issue. Here are the codes I got when the check engine stayed completely on. 1st P0300, P0304, and P0307 2nd P0300, P0304, and P0307 After rechecking spark plug gaps 3rd P0300 [/QUOTE]
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Check Engine light after N2MB
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