Wiring in PLX wideband

SPOOLIN · Post by **SPOOLIN** » Thu Oct 23, 2008 5:05 pm

My tuner told me to wire in my PLX WIDEBAND(white wire) to the d14 and not worry about wiring it to the ELD like noted elsewhere. Will this be fine, i do not require narrow band input and this is a race only vehicle. Just trying to use the most easiest route and configuration option for logging.

Jaker · Post by **Jaker** » Thu Oct 23, 2008 8:04 pm

I don't think you'll be able to datalog correctly by wiring it to D14. That input is configured for a 0-1v range, and the PLX wideband output is 0-5v. I haven't been around for a while though, so things may have changed recently.

SPOOLIN · Post by **SPOOLIN** » Fri Oct 24, 2008 5:57 am

maybe sometime can chime i have a couple of days before i wire it in.

Post by **Spunkster** » Fri Oct 24, 2008 9:27 am

http://www.hondata.com/techplxwiring.html

I highly recommend wiring as we described in the link. There is no reason not to do it this way.

SPOOLIN · Post by **SPOOLIN** » Fri Oct 24, 2008 1:24 pm

ok easy enough but i never saw any info on whether i need to check or uncheck the box for "disable ELD"

SPOOLIN · Post by **SPOOLIN** » Sun Oct 26, 2008 2:35 pm

you can now choose d14 as a wideband input in te software so there ya go everyone it doensn't matter.

SPOOLIN · Post by **SPOOLIN** » Sun Oct 26, 2008 7:34 pm

I hooked up the PLX white wire to d14 and the PLX reads perfect but i can't get hondata to match the reading on the PLX and it won't barely update or change values while datalogging on the virtual dash.

Post by **Spunkster** » Mon Oct 27, 2008 1:49 pm

You must use the voltage offset to correct any differences.

SPOOLIN · Post by **SPOOLIN** » Mon Oct 27, 2008 7:05 pm

got any hints?

when i set it at either 1 or -1 it would get close but i could never get it to match. It still wouldn't update the samples as fast as the plx would, is that normal? I figured the numbers would be flipping as fast as all the other sensors do and the plx box itself. What kind of values does the offset need? does the software make an average of incoming readings?

Post by **Spunkster** » Tue Oct 28, 2008 9:46 am

I cannot tell you what offset you need. You will just have to use trial and error to find the offset that works for you. don't forget that you can use decimals (1.23).

If it is datalogging slowly then you either have a slow laptop or maybe you have too many windows open which is slowing down the system.

SPOOLIN · Post by **SPOOLIN** » Tue Oct 28, 2008 6:55 pm

Ok well i moved it to d10 and it seems to be doing a lot better, it follows the plx up and down, not nearly as fast but i just don't see that happening anyways being that its running over usb and the plx is so exact. I did some pulls and it data logged fine and gave a pretty accurate reading. interesting that i couldn't get d14 to work considering it is an option.

SPOOLIN · Post by **SPOOLIN** » Thu Oct 30, 2008 6:11 pm

my wideband seems to be very sensitive to electrical changes. when i flip on my lights or corners or flip them off, it makes the meter shoot up almost a full point and then settles back down. Alt is giving a strait 14.3

I got my power and ground from the radio harness, there is no radio in the car.

Post by **Spunkster** » Fri Oct 31, 2008 9:08 am

Please re-read the link I posted above and see what is said about the power and ground locations.

SPOOLIN · Post by **SPOOLIN** » Fri Oct 31, 2008 2:24 pm

are you saying that i need to jam a wire into a fuse? how is this different using the radio power wire anyway that comes from the fuse panel. Just asking to make sense of it. I hate jamming wires into a fuse.

Post by **Spunkster** » Fri Oct 31, 2008 4:41 pm

You do not ever jam a wire in to a fuse. There are specific spaces in the fuse box for switched 12v.