11/16/2018
Quick tip of the day!
Some of you may know this but for those of you who don't, here is a trick you can use to test in car electronics like a radio, speaker amps, lights, fuses, relays or anything else using you cars 12 volts! In my case i wanted to test and configure my Standalone ECU without having to wire the whole thing to my car
All you need is
an old computer's power supply, you can pick them up at electronic recycling facility's for cheap as they rarely die!
some aligator clips or crimp connectors,
Wire st*****rs (but yours don't have to be as fancy as mine, a basic stripper will do) and extra wires!
First, you will need to find the Main 20 pin plug on the power supply and mine were. these colors and i believe they all are the same but if you cant find the right one just go on the net with the units company and find the 20 pin wiring diagram to find the right one to jump. jump the GREEN WIRE to the right BLACK WIRE other wise, your power supply won't turn on . I've use old leftover finishing nail and made them touch together as it fit perfectly in the plug and also cause i wanted to keep it intact but you could just use a piece of wire or splice the wires and connect them to eachother.
Next you will have to take one of your extra wire and using your st*****rs, strip the end of them and put a crimp connector on the end or just twist the end of the wire till its tight
Then you will have to find the flat 4 pin connector on the power supply and plug the crimp connectors or push the twisted wire's in (BE CAREFUL with this m**hod, if a wire becomes untwisted and touches the other connector, you could potentially short the power supply or the unit your testing) ive made that mistake but luckily there was a short safety in my power supply.
The wires to use on the 4pin connector are the yellow + and black -. Don't use the red one as it only gives 5 volts the yellow gives 12... I've made that mistake, my ecu kept shutting off.
Then you can take the connect the units to test and voila! You have got yourself the perfect power testing unit! For El cheapo!
Enjoy!