Tuning: Configure GReddy e-Manage Ultimate Software (Stage 1)

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Goal: Utilizing the easiest tuning method on Emanage Ultimate by modifying the airflow signal only.

Hardware: eManage ultimate, stage 1 wiring

Prerequiste: Ensure all emanage hardware jumpers are in their default position. Jumper positions 1,2,3,4,5,6,18 doesn't really matter which position they are as we're not using the injector wires at this stage.

Tuning difficulty level: 1 out of 10.

Software Configuration/Tuning

  1. Update to the latest software/firmware.
  2. Run software and Click on Parameter Settings (little blue car icon).
    ParameterSetting.jpg
  3. Click on Vehicle tab, and select 6G72 engine code.
    Setup6G72.jpg
  4. Click on Map Select tab and pick Airflow Adjustment map.
    Mapselect2.jpg
  5. Click on Throttle tab and define MIN and MAX settings. With the engine off, just push the throttle all the way down and emanage will automatically fill in the settings for you for MIN and MAX.
  6. Don't make the mistake of using the I/J menu. Any values you enter here are ignored because this is for stage 3 only.
    IJMenublank.jpg
    Instead we need to calculate the correction factor ourselves. Use the forumula (370/new injectors) - 1. For example my RC550 injectors would give a correction value of -0.32, multiply this by 100% and get -32%. Enter this correction value into the airflow adjustment map.
    Airflowadjustment1.jpg
  7. Assuming you're still using a stock fuel pressure regulator that's not overrun, you'll find that -32% correction at idle is too much correction, and a good idle might be around -22%. This is because our stock MAF does not report airflow Hz in a linear fashion especially at low volume of air, so we cannot use a linear correction throughout the map as we just made earlier. At low engine loads, you'll have to enrich, here's a general example of what I mean. People with a hot-wired overrun stock FPR will look closer to first airflow adjustment map above with -32% correction at idle.
    Airflowadjustment2.jpg
  8. You might have noticed the load scale is in airflow Karman Hz, this is actually preferable over throttle TPS% commonly used in emanage blue, Apexi SAFC, etc. I recommend re-adjusting the load scale from 1500 max to something like 3000 max as 1500 is too low for our cars. If you have a greddy pressure sensor, it might be easier for you to tune by PSI load scale instead.
  9. If you have a greddy pressure sensor or wideband O2 sensor controller, now would be a good time to set it up. Click on Parameter Settings, select Front Panel tab, Option 1 select Greddy Pressure Sensor (assuming that's where you plugged it in). Next select A/F meter for Option 2, and fill in the correct attributes. For my PLX M300 I select OTHER, 10 and 20 for my AFR ranges. 0 volts = 10 AFR, 5 volts = 20 AFR. Click Apply.
    FrontPanel.jpg
  10. Start your engine, your idle AFR should be around 12.5-13.5 if your engine coolant is cold, but once warmed up the AFR should be around 14.7. Now because we're fooling the ECU with a reduced airflow signal you may find the stock ECU over compensating the cold engine and the AFR is showing 10.0 to 11.5 AFR. There's nothing you can do about it unless you switch over to stage 3 tuning, so you'll just have to ignore cold engine AFRs for now.
  11. At this point your car has a rough tune, and the only way to make things better is to datalog a run and adjust your map accordingly. If you need to richen add positive correction, if you need to go leaner subtract more.

My emission testing map:

Here's a very old blue emanage map that I converted to work on my emanage ultimate. My car will run lean (AFR 18) after a hot start, and the extra rich numbers in the map are to compensate and bring the AFR back to 15.5 - 16.5 . This lean hot start only goes away after being driven, the short drive from parking lot to the emission testing station does not satisfy the ECU and remains very lean, this explains the rich crazy numbers in my emission map. Not sure why the ECU does this, but one possible explanation is because my fuel pressure solenoid is disconnected.

Emissionpassed.jpg

EmissionResults.jpg

The emission results are good considering my front O2 sensor is broken. As a quick fix, I'm using my wideband O2 narrowband wire to simulate a working front O2, problem is my wideband O2 are combining results from both front and rear banks. Someday I'll replace that front O2 sensor.

This article originated from a thread or post on 3000GT/Stealth International. (1921)