Tuning a 3G

Second round of updates

2006-11-10T10:40:00.000-08:00

Its been a few days since I updated with my latest tune. We left off at V1.2 and are now up at V1.5 in which I am pretty satisfied and will be sticking with for a week or so.

V1.3

Changes Made: In V1.3 we added 1 degree of timing from 2250 to 3500 RPM's.

The Result: The result was a bit more power nothing too crazy felt here but it was a start. I did however run into a few knock streaks which started around 5500

V1.4

Changes Made: In V1.4 we added 1 degree from 2500 to 5000 and took one away at 5500.

The Result: V1.4 was basically a flop, I got streaks of 12 counts of knock almost every WOT punch and some around 6ish at partial throttle even. This was no good and I completely reverted back to V1.3 and used that to modify to V1.5.

V1.5

Changes Made: In V1.5 as said above I reverted back to V1.3 and wanted to make it even more stable. I took away 1 degree at 5500 in hopes of the ignition to grow steady as my RPM's rise.

The Result: I dont have any logs yet for this version, I will tonight but it feels incredibly stable and healthy. The car pulls hard down low and keeps goin up high instead of knocking and retarding timing. Logs will show just how well it worked but I feel quite satisfied with the version for a bit.

**Please right click and save the logs as excel files or *.CSV

Logs and ROMS can be viewed here

Glossary

2006-10-26T13:08:00.000-07:00

A list of what the logs mean, from my understanding:

Time: The time elapsed in the log
Front 02 Sensor: This is the voltage read out of the front 02 and is converted into your air to fuel ratio showing how lean or rich you are. See the table here .
Knock Retard: Counts of knock at specified time, rpm, load etc.
Knock Learn: If your knocks reach a certain count the ECU retards timing and degrades this number.
Ignition Timing: The timing at said RPM, Load etc.
Engine Load: Current load out of 100% put on your engine. Use this with the table in ECUFlash.
Engine Speed: Current RPM's

Note: This list isn't all of the logged parameters just the non self explanatory ones that I understand

Day One

2006-10-26T12:33:00.001-07:00

First a little intro. I have a 2003 Spyder Eclipse. See my cardomain at http://www.cardomain.com/ride/718054

I have an AEM CAI and Greddy Evo 2 currently that pertain to tuning.

Things you will need:

Tactrix Cable (Cable)

A modern laptop with usb

Software used was ECUFlash and ECUEdit.

To start with I take no responsibility for anything you do with this information I am simply blogging my progress and experience. ALWAYS remember to store a backup of your stock ROM

I would also like to thank FlashBlueRS for his help guiding me through my first night of tuning.

The first step was to go out and log some runs. In this case I did 3 2nd gear pulls from 2.5k to redline. Then I looked through the logs in excel [Note: You can also have ECUEdit create custom tables to view exactly what you want].

Files: (Right click and save to view the logs in excel)

Courtesy of Xrs2

V1

Changes Made:

In the cells where I had no knocking I added 2 degrees of timing in my High Octane Ignition table. Then flashed and went out for a ride, Logging more 2nd gear pulls.

Results:

In this I found almost all runs were rather stable, knock counts raised up to a maximum of 3 or 4 as opposed to stock which was 1-2. One run however something went wrong and I had a streak of 10's which dropped my "ECU Learn" info to 95% (Basically the ECU backed off and retarded timing).

V1.1

Changes Made:

Observing that log, Flash and I decided to add .02 to all values in the "acceleration enrichment" table.

Results:

The result was better throttle response and pulled me out of lower RPM's faster. The change was def noticeable and after reviewing the logs it still was knocking a little but this time around 5K.

V1.2

Changes Made:

Due to the knocking up at 5K we dropped 1 degree at 5k from 80-100% load and I enjoyed the acceleration enrichment so I upped that another .01 and went out and flashed again

Results:

The result was a nice stable pull, with no more then 3-4 counts of knock and a nice feel for my acceleration. According to Flash when you get up around 40 you are nearing damage territory so I should be pretty safe. A fine place to end my first night!