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Still getting misfire codes

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Old Mar 4, 2003 | 09:23 AM
  #1  
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Default Still getting misfire codes

Car- 01 Z28 with ported Heads(10.8-1 comp.)TR 224 on 112 Cam. M6

Have done the normal stuff,Raise rpm to 950 set misfire test at low rpm to 32000 and have tried different idle timings.Car idles and starts great but after idling for awhile(traffic) I will get a misfire code.Checked the misfire and they are on all cylinders at idle.Not many 10-20 each test,but enough sometimes to trip the code.While driving there is no misfires.

Anything else I can do?

Thanks
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Old Mar 4, 2003 | 10:29 AM
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Default Re: Still getting misfire codes

keep playing with idle and low rpm tables
you will just have to keep raising the value
I have seen multiple tables around 32,7xxms
before the code does not register
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Old Mar 4, 2003 | 08:48 PM
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Default Re: Still getting misfire codes

You could always turn the code off.

Only if it just the P0300 code though.

You still have misfire monitoring on each of the individual cylinders and misfire counting. You can watch either of these if you ever have a problem.

<small>[ March 04, 2003, 08:50 PM: Message edited by: NoGo ]</small>
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Old Mar 4, 2003 | 10:35 PM
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Default Re: Still getting misfire codes

I was thinking of deleting it,but the car needs to go for an inspection sticker which they plug in.I thought there scanner will pick up a deleted code <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
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Old Mar 4, 2003 | 10:35 PM
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Default Re: Still getting misfire codes

is your motor loading up? what are your o2 readings?
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Old Mar 4, 2003 | 11:04 PM
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Default Re: Still getting misfire codes

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Texas Terminator:
<strong> is your motor loading up? what are your o2 readings? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can't get accurate 02 readings at idle <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> The car idles very smooth for the setup.I was thinking that this cold weather isn't helping <img border="0" title="" alt="[Frown]" src="gr_sad.gif" />
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Old Mar 5, 2003 | 10:43 AM
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Default Re: Still getting misfire codes

true too. your iat sensor may be adding more fuel to compensate for your tropical temperatures you are seeing there. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

you might e-mail nogo, he seems to be the sharpest with pcm tuning i have seen here yet. <img border="0" alt="[worship]" title="" src="graemlins/gr_hail.gif" />
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