sebol1204
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« on: August 06, 2022, 05:25:42 AM »
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Hello, i tune my 1.8t bfb engine (100% stock)
I change:
LDRXN
LDRXNZK
KFMIOP (witch axis because my load is ~151 and stock axis is max 145)
LAMFA (values witch axis, 0,85 to 0,81 on high rpm)
KFZW and KFZW2 (only axis, stock is 145, now is 160)
KFWZWOP and KFWZWOP2 (axis from 145 to 160)
FBSTABGM stock (850 value 0,000 and 900,940,950 value 1,000)
TABGTS stock (850)
Fuel 98, no ignition retards in channel 20
From 5400rpm lambda is 076 - 0,74 and i don't have idea why
Calculated egt in channnel 34 is lowe than 850
Injection time is good, injectors are't looped
Any sugestions?
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amray
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« Reply #1 on: August 06, 2022, 06:22:33 AM »
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Faulty fuel pump.
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sebol1204
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« Reply #2 on: August 06, 2022, 06:38:34 AM »
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I think when pump is broken then injectiong timming will be longer. I think, my problem is in my mod but i don't have idea what i doing wrong
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fknbrkn
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mk4 1.8T AUM
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« Reply #3 on: August 06, 2022, 06:39:56 AM »
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Problem with what?
Too rich than you expected? Log all 3 fueling paths (read wiki)
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sebol1204
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« Reply #4 on: August 06, 2022, 07:12:35 AM »
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log in post
after 4,5k rpm lambda for component protections is activated. i see EGT Very high but why? VCDS show me lower EGT than le7logger :O
No knocks
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sebol1204
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« Reply #5 on: August 06, 2022, 01:36:15 PM »
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I maked better log, is in attachment. Ok, high EGT model is my problem, but why? I want too high load for stock car? (~0,9 - 0,95 bar)
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sebol1204
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« Reply #7 on: August 06, 2022, 02:57:22 PM »
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ok, new log in attachemnt
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nyet
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« Reply #8 on: August 06, 2022, 04:37:33 PM »
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That EGT does look pretty high for those boost levels. Not sure why,
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sebol1204
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« Reply #9 on: August 07, 2022, 01:21:16 AM »
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I know but i don't have idea why. Car is 100% stock, on stock program my EGT is around ~820 - 840, but i don't have BTS intervention and lambda is 0,9 to red line. I checked timing values on channel 90/91/93 and for me is ok, 1CF is acceptable. Maybe ignition is to agresive? But i don't have knocking.
I have some idea. Rear O2 sensor after catalyst have an impact for EGT model? Maybe this is problem?
Also car have LPG (autogas) instalation, but now is off
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prj
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« Reply #10 on: August 07, 2022, 10:12:23 AM »
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There's no EGT in those logs. Only theoretical BS.
If you want to see real EGT, fit a real sensor.
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sebol1204
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« Reply #11 on: August 07, 2022, 02:09:24 PM »
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Yes, i know, this is calculated EGT, not real. My problem is bad working EGT model but why? Stock file have bad calibrated EGT model? How could i corrupt the calibrations of EGT with such small changes? I can edit BTS map, but i think this tuning is no safety.
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fknbrkn
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mk4 1.8T AUM
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« Reply #12 on: August 07, 2022, 02:28:50 PM »
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Just fix bts
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prj
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« Reply #13 on: August 08, 2022, 02:30:12 AM »
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Yes, i know, this is calculated EGT, not real. My problem is bad working EGT model but why? Stock file have bad calibrated EGT model? How could i corrupt the calibrations of EGT with such small changes? I can edit BTS map, but i think this tuning is no safety. Stock is not calibrated for non-stock boost. |
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sebol1204
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« Reply #14 on: August 08, 2022, 06:27:37 AM »
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Stock is not calibrated for non-stock boost.
Ok, this is very good tip. Is possible to fix it without outside EGT sensor or not? I ask baceuse my previous car was tuned by professional tuner, and this car was "tortured" and engine working very very good and no problems. This tuner don't using outside EGT sensor. (This same car, model and engine) I can edit KFLBTS and set lambda for good levels for me, but i think this is not good because i'm disabling protection for engine. I'm right or not? Or maybe this is only way for tune? |
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