Q: My car turns over but it has no spark and won't start

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I have replaced the camshaft sensor, crankshaft sensor, throttle position sensor, rewrapped the wire harness cause it was horrible, the codes the car was giving all went away. Timing chain is good. Still it just turns over. No start. Fuel pump is good. I'm stuck. Please help

My car has 187000 miles.
My car has an automatic transmission.

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