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Title: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: Mechsoldier on May 23, 2015, 12:39:08 AM I have FGtech V54, I am going to use it just for boot mode (I also own Kess V2, but I need a boot mode backup). So anyway, I'm going to do an ME9 2.0t and in the videos and in the literature as shown here,
https://www.youtube.com/watch?v=5KPvVKLoD04 It shows that you have to feed the ECM a 12v and a ground. It doesn't tell any specs on how many amps that feed should be, it has ends like that would go to a precision scientific power supply, and I don't want to give it too many amps and kill the ECM or the box. I was going to use a 2 amp battery charger, but I had second thoughts and don't want to fry and ME9, I don't have any more of them. ME7 I have like they grow on trees but not an ME9. Any suggestions as to to amperage or wattage? Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: ddillenger on May 23, 2015, 01:47:41 AM 1/2 amp is fine.
MED9 are dirt cheap here. Certainly less than most ME7! Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: nyet on May 23, 2015, 01:48:39 AM I don't want to give it too many amps and kill the ECM or the box. That isn't how electricity works. I = V/R In any case, 500mA is more than enough to power the ECM. Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: tjwasiak on May 23, 2015, 07:04:33 AM I would not use any battery charger without a battery connected. Without proper power drain it might give you silly high (16,5V+) voltage.
Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: Mechsoldier on May 23, 2015, 10:21:19 AM Yeah I get that I missed stated what I was saying about the voltage and amperage thing. Regardless what I meant is the end intent, which is that a charger is too much and could smoke the ecm which I don't want.
Also regardless of the me9 online cost, I need to finish this car up asap and I don't have any me9 laying around so I don't want to kill it. Thanks guys I will find a power supply wall outlet plug and mod it then. Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: turboat on May 23, 2015, 10:51:35 PM You could stick it on a 20,000A supply and not fry it unless there is a fault. It will pull what it pulls.
But as above, 500ma would probably do the trick fine, maybe as much as 1a spike. If you are short of a PSU for it, then use a battery with the charger across it. Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: Mechsoldier on May 24, 2015, 11:26:38 AM (http://www.vellemanusa.com/images/products/2/small/ps1503sb.jpg)
Decided I needed one of these instead. I can use it for lots of different things around the shop, I want to start tinkering with little arduino or raspberry pi maker kits with my son anyways, and it's just one less thing to worry about having a stable scientific grade voltage supply. 98 bucks with tax at Fry's Electronics, which I fucking love that place btw. Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: turboat on May 24, 2015, 12:28:04 PM Decent bench supply is always a good shout. Just remember to check the dials before you plug it in, wouldnt be the first time I've knocked one of the controls and stuck 17v up a ECU.
Title: Re: Suggested Power Supply Voltage for Toggle Switch Feed Using FGTech V54? Post by: Mechsoldier on May 24, 2015, 06:11:01 PM I've got a lightbulb I keep in my box with it now to give it a good test.
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