Model is 4x4 SR5 2001. Changed spark plugs by the book, one at time, etc. with pre-gapped NGKs per the manual. Checked and rechecked no wires were crisscrossed, etc.

Now starter clicks away and engine doesn't fire when I turn the key. Test for arc, and there are NO sparks at any of the 6 plugs. So 3 coil packs and 6 wires seem to be okay. Fuel pump is running.

Was there a switch I mistakingly bumped or unplugged? Any way to inadvertantly do this? No distributor cap, so all electronic wires and timing. Only had to remove intake to access coil packs, etc. Nothing that should have affected starter. help!