:::RHMT::: Real Home Made Turbo

General Category => General Discussion => Topic started by: 99gsrturbo on February 27, 2015, 11:33:50 AM

Title: AC input voltage and amps
Post by: 99gsrturbo on February 27, 2015, 11:33:50 AM

So i was trying to run my meth kit with my tuning software and was going to use the b5 (AC Switch) on the ecu and my multimeter went bad. Does anyone know what the input voltage for the AC switch is? I have a 1999 Acura Integra GSR, cause i know some of you will ask what car its on.

Title: Re: AC input voltage and amps
Post by: Joseph Davis on February 27, 2015, 11:46:14 AM

It's an opamp circuit with a pull up used as an on/off input to the micro - it looks for a ground to activate it, will float high and register as off with nothing connected to it.

Title: Re: AC input voltage and amps
Post by: 99gsrturbo on February 27, 2015, 12:04:10 PM

so it's a ground input? So I just wire up the switch with a ground relay and in theory it should active the map and as long as its before the meth kit boost switch it will active it as well,

Title: Re: AC input voltage and amps
Post by: HiProfile on February 28, 2015, 12:28:59 AM

Quote from: 99gsrturbo on February 27, 2015, 11:33:50 AM

I have a 1999 Acura Integra GSR

lemme guess Mr 99gsrturbo, is it also turbocharged? lol


I think you summed up what JD said. Use the AC switch to feed a relay ground, which then sends voltage to the +12v input you're using.

Title: Re: AC input voltage and amps
Post by: 99gsrturbo on February 28, 2015, 03:01:32 PM

I was not sure if the input was 12v or 5v or a ground. I found a multimeter and will see what it is tomorrow. But either way I was goin g to set it up so I could either run the meth or not. Due to me going to run e85 I don't see much gain for running meth