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Hello dear people
I have a very difficult problem with the Chevy 4.3 model year
My engine runs normally, but unfortunately I have no spark on all cylinders. I changed the wiring harness and installed a used ignition module. Unfortunately still nothing.
What I only noticed is when the engine control unit is plugged in, I have engine ground in the fuse box in the lines and fuses that are responsible for the ignition module and I also have ground in the pink line when the engine stops completely as soon as I turn on the ignition it then switches on plus current at the pink line.
please help, dear, thank you.
Can you check such an ignition module when it is removed? If so, please can you help me on how to check something like this.
Kind regards, Jan
