I just hooked up my LC-1 and i am trying to see if there is a way to do close loop fuel correction. I hooked up the output of the LC-1 to the spare A/D #1 and i cant figure out how to set up my ECM to use this signal for fuel correction. I have searched and found some info on this for the E8 but the descriptions in my pull down menus are different. I played with it a little and still cant get it to display A/F ratio on my gauge page. I also read the haltech manuel but that was no help either. If anyone could point me in the right direction i would appreciate it.

Thanks
Allen

 

Which software version are you using?
There are a couple things you got to do first before you can see the display.
First you have to go to 'Setup' and then scroll down the menu to 'Sensor setup' then go accross to the right into calibrate sensors and then go down to 'Wideband Uego sensor'. The calibration for the LC-1 is allready in there so all you have to do is hit apply.
After all that is done go to 'Data pages' and scroll down to the bottom and click on 'Uego sensor on Spare A/D and you should see the wideband display.

 

By the way I forgot to mention you got to setup the Spare A/D input for the uego.
So go to 'Options' and scroll down to 'Analog Input Functions'. Once in there enable 'Spare A/D Input 1'. Go down the menu and select 'Uego Input'.
Remember to hit 'Apply' or 'Enter after each selection for everything to function.

 

I am running 1.59. I setup the a/d input to uego and applied it. When i went to the sensor calibration pull down menu it only says O2 sensor, not wideband UEGO sensor. I tried both calibrations in the menu but neither seemed to work. When i pull up the gauge page it just sets at 503 mv. Thanks for the input Crispeed.

Allen

 

The wideband will never show up on the 'Gauge Page'. You have to go to the 'Data Pages' and scroll down to 'Wideband On 'Spare A/D' and open it. The wideband has it's own dedicated display.
Ok for version 1.59 you need to set up the 'Spare A/D Input' for the 'Uego Input' first before you do anything else.
Then go back to 'Calibrate Sensors' and select 'O2 Sensor(Analog Input)'
The 'O2 Sensor Calibration Form(Analog Input)' box should appear. In the 'Haltech Default Calibration List' select 'Haltech Default Fuel Pressure Sensor' and 'Apply'.
That's the calibaration for the 'Uego Sensor'.
Software version 1.62 makes this a lot easier to setup but you'll have to update to firmware build 29 to use it.

 

You do understand that there's a big difference between closed loop self tune and closed loop fuel correction. haltech doesn't automatically adjust the basemap in closed loop, but rather adding/subtracting it from the basemap. There're ECU's out there that literally self tune (which means it adjusts the basemap). You can get into alot of trouble if your current map is way off. I strongly wouldn't recommend it if you plan to use this for closed loop WOT applications.

Closed loop from haltech is only good for idle, part throttle, and fuel economy......

 

Yes i do understand that, and you can set it up however you see fit when you tune it.


I am allready runing firmware build 29, should i go ahead and update the software to V 1.62?

 

Yes you need to so you can take advantage of all the new features and bug fixes.

 

you know of any rotary besides the renesis that'll run closed loop stoich at idle?

 

Yeh if you want it to idle like a bridge port!

 

nobody said you had to run closed loop @14.7 =)

actually it would be neat if you could run closed loop at different afr's at different rpm and or loads.

i know of some dsm people who run closed loop @wot