wideband without pro interface

[ajt86]

hey guys,

well i found the write up on tuning with a wideband, but it talks about logging the wideband with the pro interface, i have the standard interface, i wasnt really planning on moving to a wideband- now that i bought my lc1, i dont have the money to upgrade my interface

whats the best way to use the LC1 logworks with the HPtuners scanner? is there a way to do this accuratly enough untill i upgrade to the pro?

[KLUG'S SS]

As far as I know their is no way at all to put your wideband info into the hptuners scanner without the pro version.

[redgto4u]

You can using another 5 volt signal that your pcm reads. For instance the a/c pressure signal or something like that. Some of the other more experienced guys on here can help you with it. I plan on using the a/c pressure signal on my gto. Basically you can set the scanner up to read the sensor but instead of actually reading that sensor you splice the wire into your wideband output wire. Then you set up a histogram for it.

[2000C-5]

This may help.

http://forums.corvetteforum.com/show....php?t=1705471

[mowton]

Here is all you need

http://forums.corvetteforum.com/show....php?t=1705471

[redgto4u]

Thanks alot!! Are PID.7107 and SENS.120, SENS.121 the same for an 05 GTO.

Where are you getting the numbers from?

[redgto4u]

Ok I got my scanner up and running. I had some trouble getting my wideband to read on the table display but that was due to a typo in the filter. What I am wondering is since I had to change my filter on my lc-1 afr user defined pid to ([PID.7101]/.5)+10.15 instead of ([PID.7101]/.5)+10 to make the reading on the scanner match my wideband display....do I need to change the filter on my AFR%error to 100*((([PID.7101]/.5)+10.15)-[SENS.121])/[SENS.121] instead of 100*((([PID.7101]/.5)+10)-[SENS.121])/[SENS.121]

Can anyone point me in the right direction?

[5_Liter_Eater]

Yes, it needs to be changed in both.

BTW, user defined PIDs are kept in the VCM Scanner.cfg file. Someone opening the above config file won't see your custom PIDs.

[redgto4u]

Yes, it needs to be changed in both.

BTW, user defined PIDs are kept in the VCM Scanner.cfg file. Someone opening the above config file won't see your custom PIDs.

Wow...you learn something new everyday!! Here's a look at the config file if anyone wants to take a lookie and see if I am missing anything.

[MattD]

I kinda feel like I wasted some money, but in the long run I don't think so because I won't have to chase down that wire in every different vehicle I tune.

[5_Liter_Eater]

Yea, if you're tuning multiple vehicles it's not nearly as convenient.

[redgto4u]

Ok I just realized something very important AFTER tuning my ve and maf tables. My scanner and lc-1 dynotune wideband display do not always match each other!! For instance, at 14.7:1 my display and scanner match. However the richer my wideband display reads the further away the scanner gets. At 12.0:1 on my display, the scanner is reading 12.8:1. At 12.5:1 on my display the scanner reads about 13.2:1. I found this out when making some wot pulls after tuning my ve/maf tables according to my scanner which is WRONG. What I noticed is that the scanner was saying is that my afr error is pretty close when in actuality it is a bit rich. Plus, now my car runs like ass.

How do I fix this problem? Is it something in the scanner or something my analog out2 on the lc1 config??

[5_Liter_Eater]

How are you able to correlate the WB display and scanner. You can't just look at one and then quickly look at the other. Maybe if you were using Logworks and HPT at the same time and were able to somehow match them up, but not eyeballing it while going through the RPMs.

BTW, this isn't related to the original post. May want to start a new thread.

[thunderkyss]

Yea, if you're tuning multiple vehicles it's not nearly as convenient.

If you're tuning multiple vehicles, you'd have to weld a new bung in each car right?? Not really related to the original topic, but I gotta know.

[5_Liter_Eater]

You'd need to do that regardless of whether you were using HPT or not. Either that or use the narrow band bung.

The extra step you'd need to do if you didn't have the Pro/EIO version is you'd have to tap into each car's AC pressure or EGR circuit.

[franco802]

subscribing.

[Pappy G]

Hello, I am very new to HP forum...starting today.
I have read alot about wiring an 02 sensor in through either the A/C or EGR. All this is great info, but I will be working on several cars not just my own.
I would like to have an OBD II extention harness and splice in for both these circuits and add plugs for my 02 analog in put. Is this possible, any ideas on this.
Can I find a pin out for the MPVI in HP to splice in for this signal??
Thank you, any help would be appreciated

[5_Liter_Eater]

You need the Pro interface