rkozola

I am spoiled with a digital multimeter. From what I can remember, try setting the dial to 10 on the DC side. Now try taking a reading. There should be a scale from 0 to 10 on the display. You want the needle pointing somewhere around 1.7 on the display.

hammeron

that is reading just under 1.75 volts dc.

rkozola

or what hammeron said.

you take the reading or around 6.8 / 10 * 2.5

rkozola

that is also good news, as that would mean the plx device is outputting the correct voltage at 0 psi.

hammeron

agreed, the reading looks good for no
boost (if it's supposed to be 1.66).

basketballord

Thanks a ton for your help guys. That means the problem is somewhere in the firewire cable or at the firewire port on the Livewire. Damnit all. lol thanks again guys

basketballord

Ugh ok so I'm back with this. So I have found that it transmits that signal...until the firewire cable gets plugged into the Livewire. Then it no longer transmits. WTF?? Allow me to explain...

So I probed with a multimeter the firewire connector that would plug into the livewire and got that 1.7v reading that it is supposed to transmit at no boost. So I know it's not the firewire cable that is faulty. Also probed a naked spot of the 0-5v wire in the firewire cable where it was spliced to the PLX harness. got the 1.7 v there too.

Then, I plugged it into the Livewire. Probed the naked spot of the 0-5v wire and got nothing. Seriously, this is pissing me off lol. What does that mean? The firewire port on the livewire has a short? Any help is appreciated.