Holding the computer next to my guage the logged into is about .75-.8 off and it's screwing with my VE tuning. It's an NGK wideband. It's hard to tune 14.7 when you're .75 off. I didn't notice it right away and was trying to figure out why it kept going lean.

 

My Plx is doing the same with v2 efilive- idk what to do either. Actually it stops recording afr once it gets to rich and stays at 10.0 on the computer. And never comes back till I reconnect

 

EFI live or HP tuners?

Have you used this wideband before or not? Note that the NGK only has an effective lambda range of ~.62-1.1 which is different than most other wideband oxygen sensors. This means that the equation used to calculate AFR by the tuning software will be different. If it's not set correctly, the displayed AFR will be off.

 

Yep, you need to offset the equation you used in your tuning software to compensate for the difference. Read the help files on HPT about widebands. All of that info is in the "how to set up your wideband" sticky.

 

It's Hptuners. I'll try and look it up. I've tried before and couldn't find where to make the changes at.

 

Found it. And fixed the offse, Much much better. Now if I can fix the breaking up in boost. Soon as it gets past 100kpa it breaks up.

 

Whats your plug gap

 

What did you do to fix it? Did you change the voltage scaling?

 

It's what ever the br7's come with. 27 sounds about right. I don't remember, I've been gaping rings and plugs and everything else. Lol. I ran these same plugs before and didn't have an issue.

In the user define it's has the volts over a number = a number. I'm not staring at it so bare with me. Well that number it equals you add what ever the amount is that it's off. After I did the user difined wideband it was close but about .2-.3 off. So I put it as 9.25 instead of 9. Now it's super close.

The write up said if it was low to use -.xx but that made it worse (lower), so I used a positive number and I brought it in.

 

Here is the write ups and the excel file.
How to Setup Your Wideband in Hp Tuners
The vid didn't work for me.