PT A/D input

[smug]

What is the formula that I need to put into the PT scanner to make the wide band work through the A/D input?

Click to read more...

 

[Turbocharged400sbc]

3800
LT1/LS1

 

[The Broken Regal]

what wideband do you have? It depends on what voltage the w/b reads in and how to convert it to 14.7

you have the wb connected to the pt?

Tommy did mine, I'm sure he could chime in, I think me made a word document with what he ended up doing to get it to work?

 

[smug]

it is a PLX deviced wideband... 0 - 5 voltage

 

[The Broken Regal]

crap, the formula is on DD's laptop... idk if he has it or james right now... PM tommygloves though, I think he might still have that stuff saved on his laptop

 

[smug]

I got it wired in and ready to rock... just need that formula

 

[my97gtp]

come help me tune my car k thnks :smile:

 

[Turbocharged400sbc]

found this fer ya

I am not sure if you have figured it out yet or not, but with my PLX where 0 volts = 10:1 A/F and 5 Volts = 20:1 A/F my formula is..... (2*(N0/51))+10

http://www.powrtuner.com/index.php?showtopic=6039&hl=

 

[smug]

I tried that formula and maybe I am doing something wrong but it just reads 20:1 afr

 

[TommyGloves]

Here ya go...I use the PLX as well.

PLX-SM AFR WBSetup
PT: (((N0/51) * 2) + 10)

If you have a voltage offset, modify the formula as follows:
((((N0/51) + voltageoffsetvalue ) * 2) + 10)

HTH

 

[10sec]

Tommy!

 

[smug]

Tommy Gun FTW

 

[Turbocharged400sbc]

 

[smug]

also thanks James for your help! It was further then what I had gotten while searching.

 

[Turbocharged400sbc]

leave it to the PT forum to have outdated incorrect info haha

 

[smug]

I tried searching for about 5 min, got no where, and said fuck it

 

[TommyGloves]

Smuggie...if you have problems with the PT scanner freezing, I'll can get you a copy of UVScan that is more stable for scanning...just not user friendly to setup.

 

[The Broken Regal]

Tommy is the fastest, tommy is the best!

 

[smug]

Smuggie...if you have problems with the PT scanner freezing, I'll can get you a copy of UVScan that is more stable for scanning...just not user friendly to setup.

That would be so awesome if you could get me a copy of that. I dont really care for the PT scanner

 

[TommyGloves]

That would be so awesome if you could get me a copy of that. I dont really care for the PT scanner

If you want to make a small investment...you can hack the PLX to provide a direct digital signal to UVScan through another serial port. No need to mess with analog wires.

PLX 300M Tuner Edition:
http://forum.efilive.com/showthread...Serial-upgrade&p=129268&viewfull=1#post129268

PLX SM-AFR
http://forum.efilive.com/showthread.php?7726-PLX-SM-AFR-Serial-upgrade&p=76304&viewfull=1#post76304

 

[smug]

TG is da man! We discussed this through PM but the aeroforce scan gauge for some reason was back feeding 12V to my PT box and there for the WB reading on my PT was staying a 20:1 afr. I soldered in a diode and problem solved!

 

[TommyGloves]

 

[Turbocharged400sbc]

you have a Y on the DLC?

 

[TommyGloves]

you have a Y on the DLC?

No...it's the 5v analog wire for the WB from the PLX box. It feeds the input to the Aeroforce guage and the A/D input on the PT.

Unfortunately, you cannot use a Y-adapter on the DLC with the PT and Aeroforce at the same time. (I've tried....it gets confused...kinda like HK in a conversation.)

 

[Turbocharged400sbc]

ahh i forgot about having to split the WB

hk