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Author Topic: ECU use LDRXNZK insted of LDRX  (Read 814 times)
Blazius
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« Reply #15 on: August 18, 2019, 09:17:07 AM »

You said you tried different octane fuels and such. Some stations differ obviously , but if you are buying 95 they have to meet 95 octane standarts at the minimum as thats how it comes out from the refinery, I doubt that will be the case.
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fukenbroken
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« Reply #16 on: August 18, 2019, 02:15:11 PM »

nvm
« Last Edit: August 18, 2019, 02:19:30 PM by fukenbroken » Logged
BlackT
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« Reply #17 on: August 18, 2019, 03:00:37 PM »

nvm
you are free to say what you mean, every advice to me is gold worth. I take in consider both bad and good comments

You said you tried different octane fuels and such. Some stations differ obviously , but if you are buying 95 they have to meet 95 octane standarts at the minimum as thats how it comes out from the refinery, I doubt that will be the case.
No this is a poor counrty, and noeone controls many things, including petrol stations. And 80% petrol stations do their on malversation. Some mix water with gasoline, some count more petrol than they put in car, and soo on. You will never understand if you live in country where there is a law.   Many newer cars light on check engine after filling tank.  And when I travel to Germany and there fill a tank my fuel compustion gets better by 10-15%.  Every man in out living area, even who doesen't undestand how engine work, know that we got the awful fuel

Back to topic,
Even running on LPG i got some knock retard, -1.5 degree. But if i take in consider that LPG burns slower and have more than 100 octane rating, that knock retard is bad news. Are they?
Soo where to start? What to look on engine?
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BlackT
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« Reply #18 on: August 19, 2019, 03:35:16 AM »

Spark plugs are good. NGK 6
But piston 1 and 4 have film of burned oil on top of piston.
On other hand pistons 2 and 3 are clean. But it looks like thex have some marks couset by detonation. Bur I am not sure. Can't see very good until I remowe head
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BlackT
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« Reply #19 on: August 19, 2019, 12:40:14 PM »

new test, in my tank i have left over 15L 95 octane, and put in 40 L  98 octane premium fuel
Here are both test, with 95 and 98
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nyet
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« Reply #20 on: August 19, 2019, 12:43:07 PM »

That is a ridiculous amount of knock control for such low boost/load.
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BlackT
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« Reply #21 on: August 19, 2019, 01:24:02 PM »

That is a ridiculous amount of knock control for such low boost/load.
But what can I do? Huh What can cause so much retard?
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nyet
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« Reply #22 on: August 19, 2019, 01:34:58 PM »

check knock sensors, test injectors, leak down, compression etc.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

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.
vwaudiguy
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« Reply #23 on: August 20, 2019, 09:43:46 PM »

Random suggestion. Unplug your maf, and do a log. If your maf is under-reporting, load will be different, and target a different area in the timing map. Lower than normal load via maf = more timing advance.
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nyet
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« Reply #24 on: August 20, 2019, 09:54:39 PM »

If his MAF is underreporting I would expect his fueling to be completely out of whack (unless KRKTE is wrong as well)

Would also see a discrepancy in ps_w vs actual boost, which isn't there.

« Last Edit: August 20, 2019, 09:57:37 PM by nyet » Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

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 #25 on: August 21, 2019, 02:01:46 AM »

"Maybe" there is some leak or something
Ps_w is under actual boost, but i don't know how much can be in some areas is 50mBar to 100 mBar

Same is with Rl and rlsol, even when boost desire match boost actual. Rl is 5% below rlsol, on some areas go to 10%
I don't know is that in border of tolerance

Next thing why i think I have some leak is beacuse my boost is low at 95% WGDC
but that doesn't must mean that, maybe N75 is fault or something else      (turbo is K03s,and this is tuned file)


But even if that is true, that my MAF doesen't measure right, if we look at desire ignition angle, it is still low(but again i have knock on that angle). maybe it is not important but to mention, It doesen't follow values in table

« Last Edit: August 21, 2019, 02:03:28 AM by BlackT » Logged
BlackT
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« Reply #26 on: August 21, 2019, 02:17:13 AM »

check knock sensors, test injectors, leak down, compression etc.
Will do that check, probably I will open engine, put new piston rings, clean and check everything. Beacuse my oil compustion is about 4L/10 000 km
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BlackT
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« Reply #27 on: August 25, 2019, 07:50:35 AM »

KFZW copied from 150 hp engine, 98 oct fuel
There is no knocking even on tuned file
For now power is okay, but this turbo schould give more, wainting for parts and free time to disamble engine
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BlackT
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« Reply #28 on: September 13, 2019, 02:02:15 AM »

I put timing back to stock 190 hp, and add few more degree (maybe little to agresive in low RPM, will put that back to stock)
Fuel is RON100 + etanol  mix is 3:1
Power is great no knock,car runs  just fine. But i want to know why I have so many oscilation on ignition
 
« Last Edit: September 13, 2019, 02:04:36 AM by BlackT » Logged
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