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

Setting Timing Help

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Old May 11, 2010 | 11:59 PM
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Default Setting Timing Help

Question what wire do I need to disconnect before I set the engine timing with timing light.
Where is the wire and what color is it.
1986 Vett.
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Old May 12, 2010 | 02:38 AM
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tan wire with black stripe.



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Old May 12, 2010 | 08:01 AM
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Thanks
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Old May 12, 2010 | 08:09 AM
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Your ECM will sense the EST wire is disconnected and set a fault code. After you are done with adjustments disconnect the battery for a minute or so the clear the code.
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