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Author Topic: P1555 - 35-00 - Maximum Limit Exceeded  (Read 5781 times)
vvt18
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« on: November 02, 2022, 12:28:02 PM »

Hi all. I received this error on my me7.5 1.8t Auq with bam file
P1555 - 35-00 - Maximum Limit Exceeded
Can be from IOP/IRL , because all other things are "disabled" , torque intervention is active too!
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nyet
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« Reply #1 on: November 02, 2022, 12:36:59 PM »

So you're not going to post a log?
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« Reply #2 on: November 02, 2022, 02:51:40 PM »

Hi all. I received this error on my me7.5 1.8t Auq with bam file
P1555 - 35-00 - Maximum Limit Exceeded
Can be from IOP/IRL , because all other things are "disabled" , torque intervention is active too!

I would expect it has to do with the hardware differences between the two as turbo, maf, injectors, egt probe are all differences the cars have. Although, without any revivent info its just speculations.
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vvt18
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« Reply #3 on: November 03, 2022, 12:01:31 PM »

KFLDHBN, maxed 3.8
LDPBN , maxed
KFTARX maxed
MAF is scaled for my sensor and my case.
Maf at throttle is the same like maf read in the log because i adjustred a little KFURL.
KFVPDKLD made it 3 for all cells.
Sincerly only thing i can think is iop/irl but.....it is strange to have this error from them
Last column in IRl for 100 is 240 for all cells , LDRXn is 245 over 3500 rpm and iop for last axis 230 is 100 for all cells!
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nyet
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« Reply #4 on: November 03, 2022, 12:03:13 PM »

I have no idea how you expect anyone to help you if you refuse to follow forum rules.
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ME7.1 tuning guide
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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 ex
nyet
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« Reply #5 on: November 03, 2022, 12:05:58 PM »

https://s4wiki.com/wiki/Tuning#Negative_deviation_.28overboost.29

I can't believe you made me look this up.

P1555 is actual boost too high for the PID to fix.

If you had posted a log, it would be immediately obvious.
« Last Edit: November 03, 2022, 12:08:17 PM by nyet » Logged

ME7.1 tuning guide
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stuydub
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« Reply #6 on: November 03, 2022, 12:11:11 PM »

17963/P1555 - Boost Pressure Control: Upper Limit Exceeded
Possible Symptoms
Reduced power output
Limp mode
Possible Causes
Boost Pressure too High
Hoses/Pipes incorrect connected, disconnected, blocked or leaking
Charger Pressure Control defective
Solenoid Valve for Boost Pressure Control (N75) defective
Possible Solutions
Check Hoses/Pipes to/between Components
Check Solenoid Valve for Boost Pressure Control (N75)

google is simple.....
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nyet
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« Reply #7 on: November 03, 2022, 02:39:50 PM »

Not just google, its literally both in the FR *and* in the S4 wiki tuning page.

The confusion comes when the various messages look like "negative deviation" which implies it is underboost.
« Last Edit: November 03, 2022, 02:41:50 PM by nyet » Logged

ME7.1 tuning guide
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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 ex
_nameless
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« Reply #8 on: November 03, 2022, 05:35:40 PM »

KFLDHBN, maxed 3.8
LDPBN , maxed
KFTARX maxed
MAF is scaled for my sensor and my case.
Maf at throttle is the same like maf read in the log because i adjustred a little KFURL.
KFVPDKLD made it 3 for all cells.
Sincerly only thing i can think is iop/irl but.....it is strange to have this error from them
Last column in IRl for 100 is 240 for all cells , LDRXn is 245 over 3500 rpm and iop for last axis 230 is 100 for all cells!

Sounds like a extremely shitty tune.
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vvt18
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« Reply #9 on: November 03, 2022, 10:51:45 PM »

_nameless  from where you had this conclusion?
Fogort to say, i had 5120 hack modifications.
The boost desire is under actual , but if i rise ldrxn and touch iop, irl  i affect the load specified will higher than load actual.
« Last Edit: November 03, 2022, 11:31:14 PM by vladvlad » Logged
nyet
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« Reply #10 on: November 03, 2022, 11:01:50 PM »

_nameless  from where you had this conclusion?

Are you going to post a log any time soon? His opinion means nothing until you do, and you have ample information here in this thread to solve your problem.
« Last Edit: November 03, 2022, 11:18:29 PM by nyet » Logged

ME7.1 tuning guide
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Trim heatmap tool

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 ex
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« Reply #11 on: November 04, 2022, 01:16:07 AM »

Its just overboost issue caused by wrong pid calibration or hw issue
Why the hell people trying to deal with overboost by adjusting desired?
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vvt18
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« Reply #12 on: November 04, 2022, 11:10:19 AM »

"Why the hell people trying to deal with overboost by adjusting desired?"
I want that boost(overboost) because i want the maximum what can i get from this turbo, but desire i can not increased............maybe i'm a dude and i don;t know how can i increased diser boost. If i increase ldrxn....the load will goes to hell.
My drl and imx are maxed because there i had the boost what i want (not exactly because the spool is not so far, but i will try to adjust again and again the wastagate line).
In the 5120 hack i think i some things witch the "smart" guys not said, something about KVLAD , KISRM, LDRQ0 , LDRQ0S,  LDRQ1ST, KFLDRQ2
I post a log not in full throttle to see what happen in normal drive.
« Last Edit: November 04, 2022, 11:18:34 AM by vladvlad » Logged
Blazius
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« Reply #13 on: November 04, 2022, 11:12:11 AM »

Mate you posted a pic of medical prescription Cheesy You better remove that fast
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nupustas
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« Reply #14 on: November 05, 2022, 07:41:16 AM »

"Why the hell people trying to deal with overboost by adjusting desired?"
I want that boost(overboost) because i want the maximum what can i get from this turbo, but desire i can not increased............maybe i'm a dude and i don;t know how can i increased diser boost. If i increase ldrxn....the load will goes to hell.
My drl and imx are maxed because there i had the boost what i want (not exactly because the spool is not so far, but i will try to adjust again and again the wastagate line).
In the 5120 hack i think i some things witch the "smart" guys not said, something about KVLAD , KISRM, LDRQ0 , LDRQ0S,  LDRQ1ST, KFLDRQ2
I post a log not in full throttle to see what happen in normal drive.


So you maxed IMX and DRL maps, and when asking why maximum limit exceeded? If your turbo stock, you dont need to touch this maps (or transfer maps from other file with this turbo) Cheesy Maybe i'm noob, but tuning should be step by step - increasing (boost, for example) by little steps and logging every time. But you maxed everything to see limits? Why? And make real log, from low rpm till redline with 100perc. throttle, i dont think you'll get help with this "log"
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