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tao13
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« on: May 20, 2018, 05:35:56 AM »
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Hi all.
I have an AUM 1.8t enngine 150hp (stock ) but modified with k04-023 turbo , 386cc injectors from BAM engine , big MAF from BAM engine too , FMIC.
After many many KFZW modifications (and now the values on high load are very low), after replace sparks (for the moment pfr6q but next days will put bkr7e) , replace coils , put 98-99 fuel, i can not escape detonations in particular at WOT on higher boost and high LOAD.
I attach one of my logs and my kflbts and kfzw.
Please give me your advices.
MAYBE must increase fuel with kflbts (it works from TABGBTS = 400) and rescale it for my new LOAD 180-191%?
Many thanks in advace.
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KasperH
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« Reply #1 on: May 20, 2018, 06:17:47 AM »
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I think it's hardware related.
Tune seems pretty subtle,
shouldn't be pulling timing at that load/timing/AFR/IAT
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tao13
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« Reply #2 on: May 20, 2018, 07:28:36 AM »
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Will try to change sparks with colder.
Sparks looks ok when i check them.
I don't have oil smoke on the exhaust and i don't have oil consumption so i think is not the pistons or pistons rings.
Can be injectors ? i bought them new with the same oem code for audi s3 BAM engine but they was cheper at the shop , they are bosch but made in brasil.
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KasperH
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« Reply #3 on: May 20, 2018, 08:02:08 AM »
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I was thinking more the lines of knock sensors.
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Adrianb
Newbie
Karma: +1/-0
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Posts: 17
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« Reply #4 on: May 20, 2018, 09:15:31 AM »
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when most knocks are on 2,3 cylinders you can try swap injectors from 2,3 cylinder to 1,4 and you will see difference if it was injectors
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tao13
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« Reply #5 on: May 20, 2018, 09:26:36 AM »
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this was first thing what i does 3 days ago
same things , same retard mostly with higher value on cylinder 2 but is not a rule
sparks was changed and the coils too
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woj
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« Reply #6 on: May 20, 2018, 10:35:20 AM »
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This is interesting, I can't help you, but not so long ago I rambled a lot about ignition retard on my ME7.9.10, essentially on stock maps. Also pulls up to 7 degrees, but for me mostly on cyl. 1, then 4, a bit on 3, while cyl. 2 stayed at 0. Plus huge excessive stock (requested, not measured) fuel (down to 10.0 AFR in many places). I have since then replaced spark plugs and all engine mounts, but have not done any proper logs since then. I am also puzzled, mostly because my tune is stock.
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woj
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« Reply #7 on: May 20, 2018, 11:38:05 AM »
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Made fresh logs on my car, I mean, look at this, stock ignition, fuel, boost maps, and on top of things running on E20 (injection tuned for it). I would also like to know the answer to your problem, maybe it can fix mine, if there is one. (I am thinking if I should check if the knock sensor is fastened properly).
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jjuuaannk
Full Member
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Posts: 89
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« Reply #8 on: May 21, 2018, 06:01:46 AM »
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-6 time ago a moment I do not see it as "bad"
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Leon Cupra R 1M
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KasperH
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« Reply #9 on: May 21, 2018, 12:10:30 PM »
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-6 time ago a moment I do not see it as "bad"
But it shouldn't pull any timing on stock timing maps on E20. It would be acceptable on schmedium octane pump gas. |
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tao13
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« Reply #10 on: May 21, 2018, 12:18:22 PM »
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1.csv was made in the morning wthout detonation without wrkma correction
2.cs with detonation and correction
between 1 and 2 logs car had a new sparks bkr7e (old was pfr6q)
ANY suggestions, WHY?
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woj
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« Reply #11 on: May 21, 2018, 12:54:53 PM »
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But it shouldn't pull any timing on stock timing maps on E20.
It would be acceptable on schmedium octane pump gas.
Precisely, and fuel does not seem to affect the results at all, I get the same crap on 95, Shell V-Power 98, and now E20. For the lack of a better idea, I actually ordered a new knock sensor, they are not expensive, and will see if that changes anything. |
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KasperH
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« Reply #12 on: May 21, 2018, 03:17:59 PM »
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1.csv was made in the morning wthout detonation without wrkma correction
2.cs with detonation and correction
between 1 and 2 logs car had a new sparks bkr7e (old was pfr6q)
ANY suggestions, WHY?
What log is with what plug? Precisely, and fuel does not seem to affect the results at all, I get the same crap on 95, Shell V-Power 98, and now E20. For the lack of a better idea, I actually ordered a new knock sensor, they are not expensive, and will see if that changes anything.
I had a similar issue. Took both sensors off, cleaned mating surfaces and torqued to spec. Solved my problem. But yeah, new sensors are cheap might as well replace them while your at it. |
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tao13
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« Reply #13 on: May 22, 2018, 11:32:25 AM »
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thanks for all your answers
i'll try to change the knock sensors but i think this is not my problem
if i study my logs i saw i have an overboost and this affect my ignition and ignition make a correction and my boost and load decrease under the reuested
all maps are set up like in picture attached
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nyet
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« Reply #14 on: May 22, 2018, 02:29:02 PM »
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if i study my logs i saw i have an overboost
This doesn't just "affect ignition". Your'e asking for knock if you boost that much. That spells trouble. Get that sorted first. |
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