Throttle cut reasons

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Topic: Throttle cut reasons (Read 2615 times)

fknbrkn

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mk4 1.8T AUM

	Throttle cut reasons « on: April 14, 2020, 04:31:31 PM »

So im a bit stuck here
Im faced with a throttle cut in a negative deviation (overboost) conditions but

it doesnt seems to be an LDO thing due to happens in a much lower range than KFDLULS are
its not an overboost intervention (logged and switched off)
wdkba drops always to 54-55% and then slightly rises
rlsol doesnt drops sooo i believe its not a torque things

just for example the situation
1.8t stroked to 2.0 with an 5120 file
HX35W turbo
and a mechanical problems leading to overboost after 6k rpm
maf unplugged here but its irellevant in that case

what should i log to investigate this? or point me pls in FR what else can cause this
thx


« Last Edit: April 14, 2020, 05:13:46 PM by fukenbroken »	Logged

nyet

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	Re: Throttle cut reasons « Reply #1 on: April 14, 2020, 05:29:45 PM »

Seems pretty obvious to me

Forget about DLULS

fix lde, call it a day. Why fuck around when you know its fucked and easily fixable? Stop dicking around with stuff when you know other things are broken (MAF, wg etc.)

It's a waste of time, you'll just end up having to retune all over again when you fix things.

The #1 mistake people make is tuning around things they know are broken.

Always fix the stuff you know is broken first, even if you think it is unrelated.


« Last Edit: April 14, 2020, 05:37:01 PM by nyet »	Logged

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.

fknbrkn

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mk4 1.8T AUM

	Re: Throttle cut reasons « Reply #2 on: April 14, 2020, 05:45:07 PM »

This car will be fixed and i didnt try to tune it with those faults. Question didnt relate to a specific car at all
Again its just an example of situation i didnt understand


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prj

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	Re: Throttle cut reasons « Reply #3 on: April 16, 2020, 07:31:33 AM »

Start reading FUEDK.
And learn how the ECU knows to go WOT, and when it intervenes on air path with throttle.

German word - überweg
Search for that, it will make things clear.


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PM's will not be answered, so don't even try.
Log your car properly.

fknbrkn

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mk4 1.8T AUM

	Re: Throttle cut reasons « Reply #4 on: April 21, 2020, 02:37:30 PM »

Got it thanks!


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