Cranks but no spark leaving coil

Road Trip said:

For what it's worth, the CKP is *the* sensor that your computer relies
completely upon in order to know if the engine is actually turning over.
Everything is based off of this all-important signal. (!)

The CKP signal tells the VCM where the crankshaft's physical rotational
position is. After reading all the other sensors, the VCM gonkulates the
optimum spark advance, and in turn sends the actual trigger signal down
to the ICM. And of course the ICM drives the coil, & out towards the
distributor cap, etc.

Therefore, let's make sure that the CKP sensor is installed properly, and
just as importantly, the wires to/from it are OK. And an easy check is
to make sure that your 20A ECM 1 fuse (in the Underhood Fuse Block)
isn't blown. Here's the CKP wiring diagram, taken from the P0336 DTC
troubleshooting flows:

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