Any guess on this one, 2003 SAN with PCM ZR6 engine. No spark comming out of the coil to plug. Tried to swap coils but no help, still no spark out of No. 1 coil. No check engine light, starts and runs fine just no power due to having a heavy 5 cylinder engine. Trying to find service manuals, wiring manuals or any help to trouble shoot.
Thanks
Thanks
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