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Discussion and questions related to the course Practical Motorsport Wiring - Professional Level
M22759/32 20-2 wire
will be good for coils , fan , water pump ,fuel pump ?
Most would say 20AWG is good for roughly 8A depending on length, temperature and acceptable voltage drop. So it might be ok for coils, but unlikely suitable for the other devices you mention.
But what the best solution would be if I am using one autosport connector, and have PDM .?
How to connect the water pump and fans to the PDM ?
I usually wire a car with power harness connectors separate from engine/sensor harnesses. Use an appropriate connector for each. You can have more than one bulkhead connector -- especially if the vehicle is complicated.
If you do have to pass just one or two high current circuits through a many-pin AS connector, then just splice into multiple pins to share the current required. This is often done with my grounds for example.
Sure use, one with #22 pins, and another with #12 pins if that's what you need.