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Chevroletfreak
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Post subject: EFILive question  Posted: Sat May 03, 2008 6:56 pm |
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| No Life |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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How do I go about logging to see if I have an intermittently faulting coil?
When I get on it pretty ghard I will occasionally get what sounds like a miss and I lose some power. Also, I think I may still be going through spark plugs....even with my Ed tune.
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My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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Roy
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Post subject: Re: EFILive question Posted: Sun May 04, 2008 2:12 pm |
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Joined: Sun May 27, 2001 2:52 pm
Posts: 5556
Location: Mehlingen,Rhineland Pfalz, Deutschland
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Chevroletfreak
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Post subject: Re: EFILive question Posted: Sun May 04, 2008 7:19 pm |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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Thanks Roy. Shouldn't I see something with the wideband also?
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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Garry
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Post subject: Re: EFILive question Posted: Sun May 04, 2008 8:44 pm |
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Joined: Sat May 26, 2001 9:59 pm
Posts: 7823
Location: Bad Hersfeld, Germany
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Given that the WB measures the oxygen, you should see a lean condition, question is if you have the WB on the same side where the misfire occurs, and if 1/4 misfire is enough to be noticeable ...
_________________
Garry Glendown * '99 Firehawk Convertible
"Horsepower is how fast you hit the wall and torque is how far you take the wall with you."
"Speed doesn't kill - suddenly becoming stationary on the other hand ..."
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Chevroletfreak
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Post subject: Re: EFILive question Posted: Mon May 05, 2008 10:54 am |
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Joined: Sat Mar 04, 2006 7:03 pm
Posts: 1007
Location: Oklahoma, USA
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Garry wrote: Given that the WB measures the oxygen, you should see a lean condition, question is if you have the WB on the same side where the misfire occurs, and if 1/4 misfire is enough to be noticeable ... Ahhh. Thats true. Mine is on the driver side. Maybe I will switch it over and see what happens.
_________________
My name is Brian and I have a SSickneSS
Black 01 6spd SS # 5971 - AFR, FAST, Nick Williams, SLP, Kooks, Borla, Kirban, Spec, Moser, BMR, Spohn
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edcmat-l1
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Post subject: Re: EFILive question Posted: Tue May 20, 2008 10:49 pm |
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Joined: Wed Jan 16, 2008 11:32 pm
Posts: 74
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You can "see" the misfire in the NB 02 sensor pattern, but only with a scope. The scanner isnt fast enough.
Your misfire counter should give you a hint as to what cylinder. Also, if you can get it to do it consistently at idle, you can use your cylinder balance test to isolate it even further. It wont tell you what component, but it will narrow it down to the cylinder.
As for the plugs, are they getting black? The fuel trims were pretty close. Do you have a data log you can post or send me?
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http://www.thehpfactory.com
EFI tuning
LS/LT specialists
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