1998 ZX-9.
With the engine running like crap decide to check the coils/plugs. Removing #1 or #3 coil shuts down the engine. Removing #2 or #4 and no change in engine idle speed, engine stays running. Pull the plugs out to see if they are firing, all are firing. Any ideas why the engine shuts off when I pull 1 or 3, but not 2 or 4?
With the engine running like crap decide to check the coils/plugs. Removing #1 or #3 coil shuts down the engine. Removing #2 or #4 and no change in engine idle speed, engine stays running. Pull the plugs out to see if they are firing, all are firing. Any ideas why the engine shuts off when I pull 1 or 3, but not 2 or 4?