LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Want to crank without fuel or spark

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Old 06-09-2007, 11:52 AM
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Want to crank without fuel or spark

Hey guys, trying to test my valve train, I want to crank the engine over a few times without fuel or spark going to the engine, do I need to pull any other fuses besides the ones under the hood labeled "ignition, injectors, and injectors"?
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Old 06-09-2007, 05:06 PM
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just pull the fuel pump relay, and un plug the coil.
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Old 06-09-2007, 08:11 PM
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Pull the PCM IGN fuse and you are good to go. Nothing else needed.
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