ketchup

iTrader: (3)

Is there anywhere else I can tap for a +5v power source or will I just have to tap into the ODB1 ECU at D1?

apekd

I got no clue. Maybe into one of the sensor signal wires i bet. Why not try that and go from there? they are a constant 5V+ and the sensors dont run off of amps so you should be fine

D16SiHatch

whadya need specifically +5v for?

ketchup

iTrader: (3)

http://www.modifry.com/products/ect/install.htm
http://www.modifry.com/products/ect/...%20diagram.jpg

Damn, I checked D1 and it's 12v!! yea, that's true the sensor signal wires are 5v but are you sure they're constant?

ketchup

iTrader: (3)

no one know where I can tap into a +5v power source?

dacrxguy

mostly everything will be 12volts unless the ecu uses a resistor I.E reference voltage like tp 5+ but i will look for one for you starting tommorow so u can hook it up with the s2k gauge cluster

n3h3bkau

Just a toss out but USB devices use 5 volts to charge so if you happen to have an extra Cigarette light -> USB Device adapter you could crack it open and steal the 12v DC -> 5v DC module.

punkdown

Why don't you just make a small 5v power supply using a 5V voltage regulator? Something like this http://www.epanorama.net/circuits/psu_5v.html. Less than 10 bucks at radio shack I bet.

ketchup

iTrader: (3)

haha thanks!

I will probably have to do that if there isn't a good 5v source already in the car to tap into.

D16SiHatch

if you have an injector resistor box laying around, that would work. it drops the voltage down to +5v.

Tyson

The sensors on the firewall use 5V including the TPS. But they are only on with ignition on.

schock3

why dont you just use resistors to cut the voltage down? pm me if you need any assistance.

ketchup

iTrader: (3)

So I can tap into the power wire going into the TPS without any issues? ground-power-signal ?

gringo7718

http://www.bestbuy.com/site/olspage....=1074787382733

Many satellite radios and new i pods run on a 5v DC circut. Use an adjustable voltage regulator to cut down the voltage to whatever you need.

xalents23

What year car are you wiring the S2K cluster to. If it is a 1990-1991 CRX you can use Pin C13 (Yellow/White wire) on your OEM ECU wiring harness. I used this wire for the +5 volts for my Modifry ECT in my 1991 CRX si.

dacrxguy

that is what i am wondering i would not want to drop any amps or volts maybe if you wire it in a parallel circuit

ketchup

iTrader: (3)

Will a regulator work?

http://www.radioshack.com/product/in...LAID=107597886

ketchup

iTrader: (3)

bump

TunerN00b

Yes.

They can get hot though, so be careful with close mounting.

Be careful you don't try and draw more current than it can provide though.

ketchup

iTrader: (3)

I believe the reg provides 1A and the ECT module draws 0.009A so I should be safe.