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Author Topic: ECU use LDRXNZK insted of LDRX  (Read 13989 times)
BlackT
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« on: August 16, 2019, 01:29:58 PM »

The car is audi A4 B6 BEX engine, everything stock.
I want to add little power in low RPM, but only the first run is good, after that the LDRXNZK  table is used for load. What can cause this? I use 95 octane fuel
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BlackT
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« Reply #1 on: August 16, 2019, 01:34:48 PM »

Here you can see that drop to LDRXNZK
now i have remembered I didn't change LAMFA, it is stock, could that be a problem?
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nyet
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« Reply #2 on: August 16, 2019, 01:41:35 PM »

yes, you should add fuel or pull timing or both.
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BlackT
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« Reply #3 on: August 16, 2019, 02:33:47 PM »

I will add fuel, and see what hapen. I am not yet familiar how to control timing
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nyet
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« Reply #4 on: August 16, 2019, 03:48:39 PM »

KFZW is covered extensively in the wiki tuning page
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BlackT
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« Reply #5 on: August 17, 2019, 09:30:09 AM »

KFZW is covered extensively in the wiki tuning page
I will take some readings to try figure it out. I know how ingition works, i tuned 2 and 4 stroke motorcycles with 2D or 3D map, but still don't know how ME7 detemine what ignition map will use

okey I add fuel, and looks like now situation is better
But look this even if I don't have knock, rlmax(and rlsol)  doesen't follow rlmx(LDRXN), later it follow ldrlts (KFLHBN) and that is okay, but in low RPM there is a problem



here again have drop to LDRXNZK at 5250 RPM


Is wkmr(avg ingition retard control) showing me that ECU fights against knocking all time?



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prj
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« Reply #6 on: August 17, 2019, 04:22:40 PM »

6 deg avg retard and "you don't have knock"?

If Bosch didn't make knock control as good as it is and didn't pull boost/dump fuel that engine would've been blown up by now.

WTF have you done with the timing? +10 deg to entire map?
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BlackT
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« Reply #7 on: August 17, 2019, 08:43:31 PM »

6 deg avg retard and "you don't have knock"?

If Bosch didn't make knock control as good as it is and didn't pull boost/dump fuel that engine would've been blown up by now.

WTF have you done with the timing? +10 deg to entire map?
I mean in that region at 2000 rpm, but never mind. Looks like I have serious problem with engine.

No i didn't touch timing at all
 
And I have retard even at stock map. Last night I fill a fuel at different gas station, that didn't make any difference. Put octane booster, still no difference

Bad or loosen knock sensor maybe? Wrong spark plug heat number?
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BlackT
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« Reply #8 on: August 18, 2019, 01:49:38 AM »


In BEX file KFZW have avg +5 values compare to other 1.8T maps
Same is with BEX file i found here on forum,as the file i read from my ECU

« Last Edit: August 18, 2019, 02:01:08 AM by BlackT » Logged
prj
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« Reply #9 on: August 18, 2019, 03:23:10 AM »

These cars don't pull that amount of timing stock.
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BlackT
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« Reply #10 on: August 18, 2019, 04:30:52 AM »

These cars don't pull that amount of timing stock.
This is run with everthing stock on car( only CAT delete)
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Blazius
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« Reply #11 on: August 18, 2019, 05:10:11 AM »

There is something really wrong with your setup.
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BlackT
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« Reply #12 on: August 18, 2019, 05:48:45 AM »

There is something really wrong with your setup.
my setup? This is stock car with stock ECU
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Blazius
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« Reply #13 on: August 18, 2019, 06:06:53 AM »

my setup? This is stock car with stock ECU

Engine wise, valvetrain or fuel system damage. Like prj said stock engine stock ecu doesnt matter, they do not pull 6 avg knock correction unless there is something wrong with the engine physically.
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BlackT
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« Reply #14 on: August 18, 2019, 06:41:26 AM »

I doubt in quality of fuel. In our country we have the awful fuel. It is rulete to find petrol station with good fuel
I will do one run on LPG to see what will hapen
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