High IDC at 7k - stock turbo
) so in case you're doing it DIY..you might want to ask some help maybe...
The other possiblity is that exhaust leak is skewing the wideband readings at WOT and you are riching up the fuel map to compensate for what you think are leaner AFR readings, which would drive up the IDC.
- Bryan
- Bryan
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The exhause leak(s) I have are small, a little smell, no additional noise.
Could oxygenated fuel be the issue?
Here is the product, apparently it has multiple uses but I found it at Pep Boys:
http://store.britelyt.com/servlet/-s...yt-aida/Detail
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Hey guys,
While fine tuning my Boost, I noticed that my A/F is now leaner than it used to be. Unfortunately I never logged IPW or IDC before so I don't have a baseline to compare to.
I wanted my A/F to be around 11.5 at peak and taper to 11.0 at redline. I have now had to richen the hell out of the maps to get it close. My mods are in my signature so please refer to it.
Things I have checked/replaced:
1. FPR vacumn hose IS connected and secured (has been for months)
2. FP Relay has been replaced to newer style months ago.
3. LTFT idle is -1.X
4. LTFT Cruise id +3.x
I am seeing >114% IDC at 7k with my few mods.
It is important to note that temps are around 35º and the cat-back is a new addition. From my looking around 210load around 7k doesn't seem that abnormal for a stock turbo EvoX. Anyone else seeing these load levels around 7k with a similar setup?
Any other suggestions?
Logs and Fuel map to follow shortly.....
While fine tuning my Boost, I noticed that my A/F is now leaner than it used to be. Unfortunately I never logged IPW or IDC before so I don't have a baseline to compare to.
I wanted my A/F to be around 11.5 at peak and taper to 11.0 at redline. I have now had to richen the hell out of the maps to get it close. My mods are in my signature so please refer to it.
Things I have checked/replaced:
1. FPR vacumn hose IS connected and secured (has been for months)
2. FP Relay has been replaced to newer style months ago.
3. LTFT idle is -1.X
4. LTFT Cruise id +3.x
I am seeing >114% IDC at 7k with my few mods.
It is important to note that temps are around 35º and the cat-back is a new addition. From my looking around 210load around 7k doesn't seem that abnormal for a stock turbo EvoX. Anyone else seeing these load levels around 7k with a similar setup?
Any other suggestions?
Logs and Fuel map to follow shortly.....
I don't know if you have already done this. Make sure you change the Fuel Injector scaling value to 532 (stock Exo X) in EvoScan. The default value in EvoScan is 513.
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I wondered about that. It is set to 513 in EvoSan. But I don't believe that would affect my Wb02 measurements at all through EvoScan. It may affect other metrics..
Does anyone know exactly which metrics that setting in EvoScan affects?
^^^^Hmmm Never thought of that. But have you logged before and everything was inline AFRs/IDC etc? I'm still saying it's the fuel pump. Have you tried leaning out your map and see what IDC do?
(we can start betting pool. Sorry bad habits)
(we can start betting pool. Sorry bad habits)
Also WB reading are WB reading. Does not go into your ECU readings. But I don't know if have evoscan set at 513 will effect IDC reading in evoscan. I always changed mine to 532.
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Hey guys,
I lowered the boost by 10% based on Bryan's suggestion. I lowered the BTEL, Reactive WGDC 1A, and Passive WGDC 1A tables 10%
I made a pull in third gear and IDC dropped to 109.xx. This proves ECU working normally right?
I lowered the boost by 10% based on Bryan's suggestion. I lowered the BTEL, Reactive WGDC 1A, and Passive WGDC 1A tables 10%
I made a pull in third gear and IDC dropped to 109.xx. This proves ECU working normally right?
T:
You are trying to work out if its an injector issue or fuel pump issue.
At the moment it looks like you have run out of injectors - since you sitting at 115%.
The way to find out if it is REALLY the injectors is to lean out the fuel map(7k/180-240load) SLOWLY until you see that change reflected in actual AFR.
If it changes immediatley then you know you are at the max of the injectors.
BUT if it doesn't change until you hit say 90%, then you know its another problem... like the fuel pump.
ALSO - i don't know what your cruise trim is at but to make this exercise easier you might want to do the "stop fuel trims affecting WOT" thingy
otherwise it will be hard to see the change taking place
You are trying to work out if its an injector issue or fuel pump issue.
At the moment it looks like you have run out of injectors - since you sitting at 115%.
The way to find out if it is REALLY the injectors is to lean out the fuel map(7k/180-240load) SLOWLY until you see that change reflected in actual AFR.
If it changes immediatley then you know you are at the max of the injectors.
BUT if it doesn't change until you hit say 90%, then you know its another problem... like the fuel pump.
ALSO - i don't know what your cruise trim is at but to make this exercise easier you might want to do the "stop fuel trims affecting WOT" thingy
otherwise it will be hard to see the change taking place
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Hey Tephra,
Cruise trim is at + 4
ok...I will increase boost back up 10% to where it was earlier today with the 115% IDC.
What amount do you suggest I lean the A/F 5, 10, or 15%?
Cruise trim is at + 4
ok...I will increase boost back up 10% to where it was earlier today with the 115% IDC.
What amount do you suggest I lean the A/F 5, 10, or 15%?