Conversions & Swaps LSX Engines in Non-LSX Vehicles
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LS1 not starting

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Old Oct 22, 2005 | 11:13 PM
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Calvertcm2003's Avatar
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Question LS1 not starting

put ls1 in 72 chevy truck with s&p wiring harness. getting fuel but no spark. What can cause a no spark problem
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Old Oct 22, 2005 | 11:50 PM
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Is the Crank position sensor plugged in? It is the sensor above the starter. That is the usual suspect.
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Old Oct 23, 2005 | 11:07 AM
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Make sure that the wire that you have hooked to your switch is hot in all the positions it needs to be.Mine was hot with the key on but when I started to crank the engine over the fire would go out and it would not start.
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Old Oct 23, 2005 | 02:00 PM
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Smile thanks

thanks hugger you were right on the problem props to you thanks fired right up
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