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LS3 doesn´t start ?

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Old 08-07-2009, 08:09 AM
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Default LS3 doesn´t start ?

Hi !
I´m new here in this forum. I have -64 Corvette Coupe and i´m just putting GMPP LS3 in it.I allso have GMPP LS series engine control kit. I did everything as they say in that instruction. Gasoline is ok and the engine is starting when i turn the key. But it would`t fire up...
Should that fuse/relay center to be grounded ?
When I but power on , that MIL indicator light in fusebox is flashing ?
I don´t have alternator yet installed , does that matter ?
-matti
Old 08-07-2009, 08:29 AM
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Make sure you have power to injectors and coils.
Old 08-28-2009, 01:47 PM
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Yes power is coming to injectors and coils , but I notice that spark is missing ??? There are no fault codes , when we check them. Any ideas to help me to get that LS3 running ?
Old 08-29-2009, 10:30 AM
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Give a guy hand here. Anybody who knows GM performance LSx wiring harness and controller???




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