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Need help with code after LGM install.....

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Old Mar 30, 2004 | 09:55 PM
  #1  
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From: Fishing Somewhere Cold
St. Jude Donor '11-'12-'13, '15
Default Need help with code after LGM install.....

Just finished installing my LGM headers and upon starting for the first time I received a P0300 code which is engine misfire detected. ???? What should I look for. I also changed the plugs to NGK TR55's and wires which are Taylor Thundervolt 50's ..I will check all connections after it cools down but is there anything else I should look for?? I cleared it once and restarted and after a few minutes it came back. :cry
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Old Mar 30, 2004 | 10:02 PM
  #2  
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St. Jude Vendor Donor '03-'04-'05-'06-'07-'08-'09-'10-'11
Default Re: Need help with code after LGM install..... (sweetcharity)



P300 is a misfire code, so you may have a cracked plug or a bad wire. You might also check that the coil pack "gang connector" is pluged in.

If you have a water spray bottle, just spray each header pipe and see which pipe is cold. that will tell you which cylinder is not fireing.

You will also set an 02 code from the raw fuel in the exhaust from which ever cylinder is missing.

should be an easy fix.

Thanks

Lou Gigliotti LGM

Feel free to give us a call if you still cannot find the problem.
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Old Mar 30, 2004 | 10:09 PM
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St. Jude Donor '11-'12-'13, '15
Default Re: Need help with code after LGM install..... (LG Motorsports)

I'm on it Lou, thanx :smash: By the way the sound at idle with my Magnaflows was impressive, cant wait to get out and open her up!!!
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Old Mar 30, 2004 | 10:12 PM
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From: Grayson Ga.
Default Re: Need help with code after LGM install..... (sweetcharity)

I also changed the wires which are Taylor Thundervolt 50's
The Taylor's have a really tight fit. Some times it traps air in the boot and it pops the wire off the plug. Try burping the boot with a small screw driver and make sure they're proper bottomed out.
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Old Mar 31, 2004 | 06:17 AM
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Default Re: Need help with code after LGM install..... (Wt99C5)

Please post your finding once fixed for those of us who will be taking the "header plunge" in the future.

Thanks.
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