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Old 09-13-2011, 09:24 AM
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Default Short curcuited?

I started my car and it almost died, before it did i shut it off.(monday)

Then i started it and gave it gas to keep it alive, drove it down the road to see if it would fix itself and it did.

When i started my car i noticed the engine light wasnt on, and its been on for a while with an 02 sensor/ catcode.

I scanned it at my old high school and it didnt even have any codes in its history.

What couldve caused this and is my car good to keep driving? It feels fine and i drove it 100 miles today to get back to VA.


EDIT""" today the engine light came back on ill check later to see if its the same codes.

Last edited by Nick V.; 09-01-2013 at 01:58 AM.
Old 09-13-2011, 09:43 AM
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you didnt name your car christine did you?
Old 09-13-2011, 10:16 AM
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Originally Posted by jam01
you didnt name your car christine did you?
XD no, it is un-named until i give it some better parts and paint.


Someone told me that it sounded like a short in my system but, i thought it could be the weak altenators on our cars. Buuut that wouldnt explain the codes resetting.

so any ideas?
Old 09-13-2011, 11:50 AM
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I'm not totally sure about this but if the alternator is failing then it could cause the pcm to lose power causing it to reset deleting the codes. Just like if you unplugged the battery
Old 09-14-2011, 07:48 AM
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what codes came up? check the battery connections, test battery and alternator.
Old 09-14-2011, 09:18 PM
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sorry guys ive been real busy with school and work so i havent had time to check codes. i will start troubleshooting tomorrow.

I had to deal with my brother totaling my dads truck today. T.T i loved that truck, had the 5.3 too.

He hit a house with it.
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Old 09-15-2011, 06:48 PM
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codes are for 02 sensors and catilytic converters.

bank one and two sensors and the cats. now i have to figure out what to do, the guy at pep boys told me just the right side cat was over 300 bucks
Old 09-15-2011, 07:10 PM
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If your primary O2s went down that could cause it to die. That price sounds right. cats cost $300+ and all they do is rob hp
Old 09-16-2011, 11:01 PM
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Originally Posted by 96SilverZ
If your primary O2s went down that could cause it to die. That price sounds right. cats cost $300+ and all they do is rob hp
so whats your advice? im not sure how do delete the cats. i just cut them off?
Old 09-17-2011, 03:27 PM
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I'm not sure if you have to pass a sniffer for smog or if it's just a code check. If it's just a code check then you can delete them. I don't know how to delete them because I live in Cali.
Old 09-20-2011, 09:29 AM
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XD i will research it, though im sure its illegal
Old 09-20-2011, 09:57 AM
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Originally Posted by 96SilverZ
If your primary O2s went down that could cause it to die. That price sounds right. cats cost $300+ and all they do is rob hp
they rob about 5hp, not worth the hassle of cutting them off. if you had a scanner you could see if the o2's are cycling correctly, but it is more likely they are one of your problems. your going to have to determine which are bad or you could start with the front two.

deleting things and cutting them off does not fix your car, unless you know how to tune and have the program i wouldn't recommend it.
Old 09-20-2011, 11:01 AM
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Originally Posted by jam01
they rob about 5hp, not worth the hassle of cutting them off. if you had a scanner you could see if the o2's are cycling correctly, but it is more likely they are one of your problems. your going to have to determine which are bad or you could start with the front two.

deleting things and cutting them off does not fix your car, unless you know how to tune and have the program i wouldn't recommend it.
you know where i can get some cheap cats? i think i need high flow since i have an SLP exhaust
Old 09-20-2011, 02:20 PM
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You need to quit listening to Pep Boys mechanics.

First thing you need to figure out is whether it's
the cat, a bad rear O2, or just bitching about the
rear O2 being too slow for the PCM's liking.

I've heard of shorts from the battery rolling (loose)
and I've had a short from the starter hot cable to
the A/C compressor clutch (cable loose and rubbing).
A good hard short, even a quick one, will reset the
PCM and its codes.




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