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Author Topic: ECU use LDRXNZK insted of LDRX  (Read 11885 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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ME7.1 tuning guide (READ FIRST)
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Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
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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