C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

HELP!!! Pulled codes, nothing but 12's...

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Old Apr 5, 2004 | 01:05 AM
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Default HELP!!! Pulled codes, nothing but 12's...

I know it is supposed to flash 12's three times, then codes then 12's three times to show complete. It just kept flashing 12's the whole time ignition was on. Does this mean I don't have any problem codes????????????

I know I have to have a code or two in this old 86 Vette, any ideas?????????? :banghead:


[Modified by jvet, 12:14 AM 4/5/2004]
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Old Apr 5, 2004 | 01:18 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (jvet)

It goes like this...

12 flashes
trouble code(s) flash
12 flashes

If nothing but 12s then there is no toublecode set.
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Old Apr 5, 2004 | 01:23 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (scorp508)

Thanks Scorp!!!!!

I dunno, I'm not looking for problems, but I find it hard to believe not a single code!!!! Well I guess it's better than a bunch of them, huh??
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Old Apr 5, 2004 | 03:34 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (jvet)

12 12 12 = :thumbs:
...If you disconnected the battery recently, all the stored codes are resetted.
-Beppe-
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Old Apr 5, 2004 | 03:40 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (conv90)

I did disconnect battery for mods done on Wednesday, so I'm sure codes (if any) were lost. Have driven couple hours run-time since. How long 'til they would reappear??????? :confused:
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Old Apr 5, 2004 | 04:33 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (jvet)

I'm no authority, but I think if you had any non-intermittent engine codes, they would show up by now. Some chassis codes will only show after certain speeds. If the engine has never come back up to full temp since you cleared the codes, then some engine codes will not have reappeared...but generally....they should have appeared now. I'm sure others can give you a more definitive answer.
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Old Apr 5, 2004 | 06:55 AM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (jvet)

why are you searching for trouble codes? Why you suspect to have stored some code?
When a genereic code occurs (while you are driving) you can see it on the panel with the light SES service engine soon.
If you are driving in the sunllight it's probably that you can't see this light...
In any case if you used the car for two hours and no codes were stored you have to be happy of this.
-Beppe-
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Old Apr 8, 2004 | 07:49 PM
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Default Re: HELP!!! Pulled codes, nothing but 12's... (conv90)

hey jvet - still no switch / for cooling fan /you didnt respond to my email either
michaellayman@cs.com
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