No power when car starts

[ephyouckay 10+ year member]

I have an odd problem but it doesnt always happen.

Here is the setup:

i have 2 amps and a power supply (carnetix p1900) hooked up to a + and - distrubution block.

Sometimes when i start the car all 3 things do not turn on. this doesnt always happen, just happens out of the blue and it only happened when i start the car. hasnt happened during the middle of use yet.

i decided to check the remote on wire and it seemed fine. there was 12v going through.

as i was attempting to check the positive distroblock the three things decided to turn on!! so yea i wasnt able to check to power on the distoblock so im not sure what the problem is yet for sure. but to me the only thing that can prevent all three things to not turn on is the remote wire or the power/ground. since remote wire is fine it has to be the power/ground. i already checked the connection prior to the last incident and the connection from the battery to fuse to distroblock seemed fine. not sure what else it could be

any ideas? i wil try to take a reading on the distroblock the next time this happens but for now, anyone else have any other ideas that i can test and try?

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[mlstrass 5,000+ posts]

Might be too much for the trigger wire. I'd use a relay to power those 3 things and the trigger wire to trip the relay....

 

[ephyouckay 10+ year member]

so you think all three things on the remote wire can cause that because the draw is too much?

also one thing i forgot to mention is that so far when this happens, everything turns on at teh same time after maybe a few mins and sometimes up to 5 mins. so it seems as though there is a delay or something. however keep in mind that the remote wire was carrying 12v when the amps and the powersupply was all down so that leads me to suspect that the remote wire is fine.

 

[ephyouckay 10+ year member]

bump!

ill try the relay thing tommorow. btw, if there wasnt enough current in teh remote wire and say that caused the delay in all 3 things, would the power on led still be lit? So basically if the remote wire is not hot and the power and ground is hot would i see the led on or is the led on specifically tied to the remote wire or both main power and remote?