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

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Old Oct 31, 2010 | 07:30 PM
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Well We are chasing a ghost , started with a miss and back firing at high speed !

New cap, rotor, coil, map sensor, and heat sensor, did not fix the problem !

No codes

Yesterday on a test drive the battery light came on and the gauge showed no charging , took the almost new altinator in for a replacment and it showed to be good , then had them check the battery also good !
Put the battery back in this morning all is working but the miss & back firing are still there , thinking the fuel pump , any ideas ??
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Old Oct 31, 2010 | 07:36 PM
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back fire is sometimes caused by lean fuel conditions.
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Old Oct 31, 2010 | 08:14 PM
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Try changing plugs.
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Old Oct 31, 2010 | 08:28 PM
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Check fuel pressure and check for codes.
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Old Oct 31, 2010 | 09:14 PM
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Plug Wires?
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Old Oct 31, 2010 | 09:52 PM
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Black smoke coming out of side pipes , think it is dumping to much fuel , sure it needs new plugs but would like to cure problem first , might need wires to, but have high dollar ones on it , high heat for the headers !
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