Prosport A/F gauge w/LC-1?

[dok33]

Wasn't sure where to post this, hopefully it falls under general discussion...

I'm trying to figure out how to scale the LC-1 output for use with a Prosport digital A/F gauge. I called Prosport and they said I should be able to flip the switch on the gauge to 0-5V AFR and hook it to Output 2 on the LC-1 (0-5V) but the readings are way off when verified with a laptop.

I've tried a few different things and can't get the gauge to match what the laptop shows. Anyone running the setup and can help?

 

[black91turbo]

I am not running the Prosport but my friend with an MR2 says that they are having some problems with prosport gauge on the MR2 forums....just FYI

 

[HommerSimpson]

I was told with a lc1 wideband controler you can use with prosport afr.. and i hope thats the case as i have brand new guage lc1 wideband controler and o2....and will be hopefully starting car next day or so.. and really need them to work ....

 

[dok33]

It's not an issue of them working, the output on the LC-1 is completely adjustable. The problem is no one at Prosport can tell me what range it needs to be set at to work with their gauge, ie-xAFR=0V, xxAFR=5V

 

[HommerSimpson]

It's not an issue of them working, the output on the LC-1 is completely adjustable. The problem is no one at Prosport can tell me what range it needs to be set at to work with their gauge, ie-xAFR=0V, xxAFR=5V

well if you get answer .. let me know :}or figure it out..

 

[CRE]

Well, as every wideband controller I know of outputs in a linear scale it should be too hard to just go ninja on it until it matches the LC-1's readings in Logworks.

 

[dok33]

Will do, I just found a writeup on using a 0-1V Autometer gauge with the LC-1:
http://www.innovatemotorsports.com/resources/autometer-integration.php

I'm going to flip the Prosport back to the 0-1V setting and give that a shot, let you guys know...

 

[CRE]

Well, the resolutions isn't as hot.. I'd keep trying with the 0-5v scale. Your gauge, your call though.

 

[dok33]

I used the autometer settings in the link and it's matching pretty well. I also got ahold of someone at Prosport who's got some answers, I'll let you guys know what comes out of it...

 

[dok33]

Here's what Prosport recommended for the 0-5V input:
0.22V for 7.35A/F and 3.45V for 22.39A/F

I haven't had a chance to try it out yet as the coupler on my turbo outlet melted and I'm trying to figure out the best way to route things so it doesn't happen again...

 

[dok33]

Forgot about this post, but wanted to update everyone. I had to RMA my LC-1 because it crashed while I was updating the firmware and apparently there's no way to back out without sending it in to them

Got it back and hooked it up last night and my A/F gauge was reading correctly so I guess it was the lc-1 all along. With the gauge set on 0-5V input connected to Analog out 2 on the LC-1 it should read correctly. Just an FYI!

 

[mk3dude]

which prosport gauge is it? do you know the part #

Thank you

 

[dok33]

It's the older A/F gauge (they don't sell it anymore) with a 0-1v or 0-5v input with 50 second voltage display.