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Engine sputtering at high rmps??

 
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Old 10-29-2012, 07:53 PM
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Engine sputtering at high rmps??

Whenever im at full throttle and i get to about 7000 rmps, the engine sputters a bit. Its almost like it doesnt wanna go any higher and i lose power. Any ideas on what this could be?
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Old 10-29-2012, 07:55 PM
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Re: Engine sputtering at high rmps??

Any CELs?
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Old 10-29-2012, 08:02 PM
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Re: Engine sputtering at high rmps??

Nope. The car runs immaculate. Its really not that big of a deal, its just bothering me that something COULD be wrong
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Old 10-29-2012, 08:07 PM
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Re: Engine sputtering at high rmps??

Does it actually sputter or does it just feel like the engine kind of "can't breathe" once it hits a certain point?
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Old 10-29-2012, 08:16 PM
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Re: Engine sputtering at high rmps??

Yeah i think that would describe it a little better
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Old 10-29-2012, 08:20 PM
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Re: Engine sputtering at high rmps??

You might need a new catalytic converter. When I bought my current Prelude, it would hit 5k RPMs and basically just stop...the engine would get louder and it was working harder, but I wasn't going any faster. The cat was a bit clogged and was restricting the air flow.
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Old 10-29-2012, 08:54 PM
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Re: Engine sputtering at high rmps??

Oh well I was thinking maybe spark plugs or wires since I have no idea the last time they were replaced. And im gonna get a high flow cat eventually so hopefully that will solve the problem.
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Old 10-29-2012, 09:48 PM
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Re: Engine sputtering at high rmps??

Yeah the next thing I was going to say was plugs/wires/cap/rotor.
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Old 10-30-2012, 01:43 PM
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Re: Engine sputtering at high rmps??

I don't know about you, but thats about the point where my 4th gen hit fuel cut..
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Old 10-30-2012, 01:44 PM
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Re: Engine sputtering at high rmps??

Well I replaced the plugs back in april when I got the car, but I've run seafoam through it twice since then. But wires are a definite.
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Old 10-30-2012, 02:21 PM
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Re: Engine sputtering at high rmps??

Redline is 7200, fuel cut is 7500/7600 on a stock ECU. Something was wrong with your car if it was cutting fuel at 7k rpms.
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Old 10-30-2012, 03:48 PM
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Re: Engine sputtering at high rmps??

I dont think its hitting fuel cut, cause ive definately revved it past redline in cold weather.
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Old 10-30-2012, 04:56 PM
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Re: Engine sputtering at high rmps??

Is your engine fully warmed up when this is happening?
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Old 10-30-2012, 05:37 PM
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Re: Engine sputtering at high rmps??

Yeah it is.
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Old 10-30-2012, 08:06 PM
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Re: Engine sputtering at high rmps??

Check ur cat if its clogged poke holes thru it and see if that helps or get a test pipe if that's not it then ohm out ur plug wires and check cap and rotor then see if running some injector cleaner thru the gas helps at all
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Old 10-30-2012, 10:28 PM
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Re: Engine sputtering at high rmps??

I just did an oil change and ran seafoam through the car about 4 days ago.
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