08-19-2007, 01:55 PM
Join Date: Aug 2007
Location: The Netherlands
Total Cats: 0
EMU Autotune activation
Is there anyone who will post a idiots guide to activate te autotune function imbedded in the EMU software. I followed the parameter instructions Joe Perres posted, but that didn't the trick.
There are several things you have to do to enable this.
First, go to Parameters, switch to the Throttle tab and set up your throttle position sensor. Ensure that it is working properly.
Next, still in Parameters, go to the A/F Target tab. Set the Affected Map to I/J 1, set Throttle Position to, say, 25% or so, and accept the defaults.
Next, still in Parameters, go to Map Select, and check the A/F Target box.
Next, still in Parameters, go to Front Panel, and ensure that your A/F Meter and Pressure sensor is properly configured. Also, examine the DIP SWITCH settings to see if I/J 1 is presently set on any of them. If it is, make sure that dip switch is on.
On the left side of the screen you now have an A/F Target map. I suggest that you scale this map the same as I/J 1. From the drop-down window, select Pressure Sensor.
The way this works is that anytime the conditions you set in the A/F Target tab of parameters are met (temperature, throttle position, time since start) the EMU will look at whatever AFR value you have put into a given cell, compare it to actual AFR, and adjust I/J 1 to try and achieve this value.
You DO NOT want A/F Target to be running while the ECU is in closed-loop mode. So for all pressure values below atmospheric, enter "-" (that's a hyphen or minus symbol, ASCII character 0x2D). On US keyboards, it's the non-shifted character between 0 and =. On a Dutch keyboard, I think it is the character all the way at the lower-right (next to the right-shift key) where = is the shifter character on the same key. DO NOT enter 14.7, zero, etc.
In the boosted cells, enter your target value. In my table, I start at 13.5 at atmo, and scale down to 11.5 at full boost.
I have the EMU a Greddy pressure sensor and a LC-1 wideband, so that should be enough. I altered my Boomslang to monitor watertemp and it does (see it whille datalogging). So what am I doing wrong?
Last edited by MX5Kuro; 08-19-2007 at 03:42 PM.