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2014 Honda Civic Si
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Hey guys. I have a 2014 Si with 67,131 miles. And lately I’ve been getting this misfire randomly where I can be taking off from a light and then all of sudden I get loss of power, low rpms that won’t go past 4000 and it sucks when I’m trying to merge into traffic or turn. Plus I live in Miami where most drivers ? Suck. Any suggestions?? What could I do to resolve it ?
 

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I am getting this same problem for more 2013 SI, I get misfires on all cylinders and then I step on the accelerator and does do anything, I have changed the spark plugs and ignition coils OEM, compression is good on all cylinders. If i step on the gas i get check engine but as soon as i let go of the accelerator the check engine goes away. Any idea on what it might be,
 

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Please post the exact codes you are getting.
Any mods to the car?

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2014 Civic Si
I'm having the same problem. Im getting Code P0303. Ive changed plugs,coil and injector. Even did intake gaskets. Still throwing the code. Along with TPMS, asstisted hill start and a few others. Anyone ideas would be greatly appriciated.
 
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