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Old 10-13-2014, 10:50 PM   #1
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P0430 Code

Hi Guys, I'm curious I recently have a problem, my car's check engine light came on so I ran my tuner on it and gave me this P0430 code, does anyone know how I can fix this problem, Also sometimes my car tends not to click over right away could this code be causing that or would I need to replace my alternator..? Thanks For the Help
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Old 10-13-2014, 11:47 PM   #2
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P0430 will not cause your car to not start. But there is a possibility that a bad alternator could cause the code.
I'd get your charging system and battery checked out first. That code just means that the computer has detected a catalytic converter that isn't functioning properly... A dead battery could leave you stranded!
The code can be caused by such things like an air leak in the intake system, an exhaust leak, a faulty 02 sensor, etc. It's not necessarily a bad catalytic converter.
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Old 10-15-2014, 08:45 AM   #3
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A alternator with a high ripple can cause this code and many others. It can also cause hard starts and stalling. I know from experience.

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Old 11-10-2014, 03:29 AM   #4
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Yea mighy light jus came on yesterday out of now where all charging system is brand new and dnt really see how it would throw a p0430 code j have catless exhause but ive had tht every since i got the car and it never through a check engine light had it for about a lil over 2 years now so imma kind of stomep couldnt find an exhaust leak however i did notice tht one of my screws are missing oht of my m.a.g that goes into the c.a.i so maybe thts the issue not sure and i sure cant feel or hear a diffrence in the car or performance so im a lil confused any help is apperchiated

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Old 11-10-2014, 03:31 AM   #5
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Old 11-10-2014, 09:27 AM   #6
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Quote:
Originally Posted by codys08gt View Post
Yea mighy light jus came on yesterday out of now where all charging system is brand new and dnt really see how it would throw a p0430 code j have catless exhause but ive had tht every since i got the car and it never through a check engine light had it for about a lil over 2 years now so imma kind of stomep couldnt find an exhaust leak however i did notice tht one of my screws are missing oht of my m.a.g that goes into the c.a.i so maybe thts the issue not sure and i sure cant feel or hear a diffrence in the car or performance so im a lil confused any help is apperchiated

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Your best bet is to start a thread in the 05-09 GT section, those guys will know a lot more about your car than we will over here. Do you have MIL eliminators or anything like that?
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Old 11-10-2014, 12:57 PM   #7
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Cool thx jus trying to figure the lay out of this sit jus sighned up yesterday

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Old 11-10-2014, 01:04 PM   #8
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Cool thx jus trying to figure the lay out of this sit jus sighned up yesterday

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It's all good man
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