Throttle cut reasons

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Topic: Throttle cut reasons (Read 2895 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

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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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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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