swifty wrote:Without seeing what changes you have made to your maps it is impossible to tell what is going on. You have mentioned upping the boost and playing with the WDC values but your post doesn't tell us where in the maps you have done this. The original post mentions 'lower boost than factory', does his mean lower than the boost limit or lower than the targets in the desired boost table ? You say the stock map works ok, is that with the oxygen sensor removed ?
Yeah, the lack of data is my bad. I'm just frustrated with this issue and getting data out of that laptop is a total PITA. I finally have a way to extract data AND I'm not home with the woman bugging me
I uploaded my csv files, .bin files and some screen shots to;
http://www.dodgubishi.com/wrx/tuning .
I originally was using ecuedit, but the xml for that was very very wrong. I since switched to enginuity (0.2.7.4b). Some day I will go through and fix all the addresses because I like ecuedit's interface more but that is a side issue.
_ALL_ of my testing is with the sensor removed and the CEL on. I have also started using a default IAM of 16 for all my testing so I don't need to wait for that to increase.
I have modified the following tables:
Fuel - Low Det
Boost - WG DC (MT)
Boost - Target PSI (MT)
Except for any stock runs, here are the fuel and boost maps I have in the ECU (I leaned it out a little bit up top).
swifty wrote:Have you logged any of this data or are you reading off the boost gauge ? Also, have you tried using the stock WDC values and logging to see how much boost you are making ? I would approach it like that to start with, then analyse the data to see where the boost target is not being met. Then increase the WDC in those areas and try another run. Keep increasing gradually until you get to the point where the boost targets are being reached.
I am logging everything via ecuexplorer. Logs are in the aformentioned data directory. Quick summary of the max numbers;
stock map = 13.8psi, 74% WGDC
higher WGDC + upped boost target = 13.5psi, 78% WGDC
highest WGDC + upped boost target = 11.9psi, 86% WGDC
LOWER WGDC + upped boost target = 11psi, 58% WGDC (did this for expermental purposes, I didn't copy the logs up)
It IS hitting the max WGDC that I set but the boost target is WAY off. I've never gotten it to go above 14psi. I did that once in a very lightly modified map with a 4th gear pull. I increased the WGDC a little more and my boost went down.
swifty wrote:I don't think you will need to increase the duty very much, 3 or 4% per additional psi or something like that I would imagine. If you have the WDC too high then it will overshoot the boost target and the ecu will then reduce the boost but you will feel this when driving.
Are you sure the xml for your rom is correct ? If it isn't then it could explain why there doesn't seem to be any logical explanation of the effect of the WDC changes.
I see you are monitoring the afr, do you also have something monitoring detonation ?
I'm not totally sure the XML is correct. During one session of testing (about 3 flashes) I copied my maps into both the AT and MT sections just to be sure. There was no change from what I'm seeing with only modifications to the MT map.
I have no additional det monitoring besides the stock setup.
Thanks a ton. If I can get this sorted out then I can save the $ I was going to spend on a utec
-paul