WOT tuning

[ciesla]

Tuned my car with ecuflash, when WOT tuning i got my AFR to match the 10.5 i set the last four columns of my map too. Just wondering if i now keep the map at 10.5 or go back to the original map.

 

[Tiki2777]

How does it run at 10.5? The stock map is REALLY REALLY rich. Like 9.0 for decent load. So, honestly, i wouldn't go back. You might want to rescale the entire map and tune more.

 

[ciesla]

8. WOT Tuning

Ok, at this point your DSM should be idling a little funny, this is fine.
Before we tune the idle, we want to tune WOT to get the right injector scaling dialed in.

First off, when you are ready to tune for WOT open your tune in ECUFlash. Open "High Octane Fuel Map 1". These are the AFR's the ECU is shooting for under different RPM's and Load. What we want to do here is make all the numbers in the last 4 columns the same. So, click and drag and select all of them at once then press =.I suggest using 10.5 because it's not too rich or too lean. After adjusting those, save the tune and flash it to your ECU. Start the car and let it idle a few minutes. You will notice every few minutes of idle the car sort of stumbles and then recovers, don't worry, we will get to that later. For now, let's take the car out!

So, what we are trying to do here is match the readings on the wideband to the 10.5 we put in ECUFlash. Do some WOT pulls in 2nd gear and watch your AFR. You should be around 10.5, if you are too rich (10.3 or lower constantly) you will need to raise your injector scaling. If you are too lean (10.7 or higher constantly) you will need to lower your injector scaling. After a few tries you should be pretty close to your 10.5 throughout the pull. Congrats, you're done WOT tuning.

IMPORTANT: If you notice you are much leaner than 11 STOP and go lower your injector scaling, running too lean can damage your motor. Also, most widebands will only read as low as 10, if your AFR is lower than 10 then your wideband will still only show 10.

IMPORTANT 2: While doing your pulls you should be logging them. Log for knock sum. Too much knock is bad. I occasionally get 2 knock on hot days. Anything over 7 is really bad and you'll need to either adjust your settings or richen your fuel mixture. We are NOT shooting for 14.7 during WOT. We are shooting for 10.5


that is from http://www.dsmtuners.com/forums/articles-tuning-ecu/407715-how-get-basic-tune-ecuflash.html The car seems to run fine, wanted to see if someone knew if it was better to go back to the stock map

 

[Tiki2777]

He had trouble getting his stuff tuned, but Ceddy has his own method that seems to work well. (after all he made tuning possible on 98-99 ecus...)

Look at this: Injectors « ceddy.us

He changes up the cells to match and raises the afr a bit to 10.5:1.

 

[ciesla]

Looks like ill be keeping them at 10.5