What could’ve happened? Code p0300

[Jnaszty559]

Last night I a did a little hard acceleration from a light , when I got home I noticed I had a check engine light come on and it showed code P0300? My car ran fine and today runs completely normal and code is gone. What could’ve happened? Should I change my spark plugs as my car has 26,00 miles now? Bad e85?

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[2015 Silver GT]

Did you want to list your mods or keep it a mystery so everyone can just guess? I swear society hasn’t gotten really lazy.

 

[ORRadtech]

What could've happened?
The list is long.

And that's for a stock engine. Add in modifications of unknown quantity and quality and things get more complicated.

 

[sk47]

Cracked Cylinders | 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt, Mach 1) - Mustang6G.com

Hello; Here is a link to a current thread on the same code.

 

[robvas]

If you wore your spark plugs out at 26,000 miles....

Can't hurt to remove and inspect the plugs and coils.

 

[Jnaszty559]

Did you want to list your mods or keep it a mystery so everyone can just guess? I swear society hasn’t gotten really lazy.

Just headers and e85

 

[Jnaszty559]

What could've happened?
The list is long.

And that's for a stock engine. Add in modifications of unknown quantity and quality and things get more complicated.

Wasn’t there a recall on our fuel pumps from ford?

 

[2015 Silver GT]

Just headers and e85

So no tune?

 

[Jnaszty559]

So no tune?

Yes tuned.

 

[SheepDog]

Last night I a did a little hard acceleration from a light , when I got home I noticed I had a check engine light come on and it showed code P0300? My car ran fine and today runs completely normal and code is gone. What could’ve happened? Should I change my spark plugs as my car has 26,00 miles now? Bad e85?

No one is going to be able to help you unless you tell them what year the car is, what modifications, what maintenance you've done recently etc. (assuming this isn't' the 2005 V6 in your Signature?)

Do you have any idea how many things can cause a random misfire?

 

[2015 Silver GT]

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