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No start 1994 Suburban

So I have a 1994 Chevrolet Suburban 5.7

Craziest thing is it will start and run fine only once a day after that the engine will turn over but I have no spark. Fuel is spraying in the TB. Changed coil, icm, ecm, rotary button, cap… any ideas?

Did you test the ignition module?

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Since you’ve already replaced the Ignition Control Module, try replacing the distributor pickup coil.