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

Code 12??

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Old May 28, 2007 | 08:31 PM
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jimg's'93's Avatar
jimg's'93
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Default Code 12??

I just received a 'C-12' code on my '93. I can't even find that in the FSM. Anyone know of what this might be?

The reason I pulled the code is she's missing badly, but only once the engine is hot. I've replaced the coil (had one handy) with no improvement.

Thanks All
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Old May 29, 2007 | 05:30 AM
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Yeah mate, its a CCM code to tell you all is well within the CCM, its not a DTC, so you can rest easy, cause as far as your CCM and ECM are concerned, your car is fine


Tell me more about the miss fire issue, just by what youve said i have stuff all info to go with. Id start by getting the Ignition control module tested. Tell us all you know and we can go from there.
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