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Old Nov 21, 2007 | 07:28 AM
  #1  
HybridBB6's Avatar
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Default Weird Problem

My car sounds like it's misfiring, but I didn't throw any codes for a misfire when I scanned my codes, what can be wrong?
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Old Nov 21, 2007 | 07:47 AM
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Default

The computer doesn't always catch the misfire, check the air filter, spark plugs, fuel filter, etc.

follow normal procedure for finding a misfire.
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Old Nov 21, 2007 | 07:49 AM
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Default Re: (mgags7)

I bought new plugs and injecter cleaner today so I'm gonna see if that helps any. I also changed my Cap and Rotor last time I had the misfire.
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Old Nov 21, 2007 | 12:00 PM
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Default Re: (mgags7)

My car missfires when my distributor timing is advanced too far. Or sputters, I believe the two are the same though are they not?

Could it be his distributor timing?

Injector cleaner is a huge scam in probably 80% of the cases in my narrowminded opinion. Some work though but the best would be where you pull your injectors physically out and clean them.

You'd think though that gas would do a good job of cleaning injectors. Unless debris gets past your fuel filter, injectors shouldn't get clogged should they? Maybe stick from maybe mechanical wear?
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Old Nov 21, 2007 | 12:11 PM
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Default Re: (mattsnooz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mattsnooz &raquo;</TD></TR><TR><TD CLASS="quote">My car missfires when my distributor timing is advanced too far. Or sputters, I believe the two are the same though are they not?

Could it be his distributor timing?</TD></TR></TABLE>

He would have had to change the ignition timing for that to be possible. I doubt he's taken the distributor off just for fun, but it is definitely possible.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mattsnooz &raquo;</TD></TR><TR><TD CLASS="quote">Injector cleaner is a huge scam in probably 80% of the cases in my narrowminded opinion. Some work though but the best would be where you pull your injectors physically out and clean them.</TD></TR></TABLE>

Having them cleaned and flowed by a shop is always best, but the bottled injector cleaner is supposed to do a good job.

Debris can definitely get past the fuel filter, the injectors actually have their own little filter on the tip that goes into the fuel rail, and I've cleaned a bit of gunk out of those before on one engine.
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Old Nov 21, 2007 | 12:26 PM
  #6  
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Default Re: (mgags7)

How did you clean them manually? Dipped them in carb cleaner?

He could try adjusting his timing to see if it removes the sputtering though very easily. Long shot but sometimes the less obvious is the most likely in this strange strange world
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Old Nov 21, 2007 | 09:30 PM
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Default Re: (mattsnooz)

Sputtering is gone, Figured out I need a new IACV
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