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Title: Audi S3 1.8T Coldstart Problem Post by: Dobermann on December 22, 2010, 08:37:02 AM Hello Friends !!! Im new here !!
I hope someone can help me !! Im looking for the map where is set the min Intake Air Temp limit !! by coldstart the car has no power that means error 17705 !! if i turn off and start again car runs normal !! I know it is set to 5 degree !! if i set it to -5 oder -10 the problem will be solved !! maybe someone has done it in the past and know whrere to find it !! must be a singlevalue im my informations i cant find this map !!! This Problem have many 1.8T chipped but somtimes happens this if the car is stock too !! this is the error code http://wiki.ross-tech.com/wiki/index.php/17705/P1297/004759 this happens only on cold days !! maybe someone know what i mean and knows the a solution !! thank you !! KIng Regards !! 0261206794 1037360314 8N0906018J 0004 Title: Re: Audi S3 1.8T Coldstart Problem Post by: nokiafix on December 22, 2010, 01:55:27 PM I think the map you need to stop the 17705 code is fvpdkldus in most map its just before kfdluls map for over boost deviation.
I hope it helps, If not let me know and I will look into the file. Title: Re: Audi S3 1.8T Coldstart Problem Post by: Dobermann on December 22, 2010, 03:02:40 PM I think the map you need to stop the 17705 code is fvpdkldus in most map its just before kfdluls map for over boost deviation. I hope it helps, If not let me know and I will look into the file. hello thank you for answer !!! i have spent a lot of time to try to solve it !! please have a look at the file or tell me what i must change to solve it !! every cold day i get this error 17705 only on cold days !! is the outside temp over 5 or 6 degree that fault will not happen !!!! thank you for your help !! king regards dobermann Title: Re: Audi S3 1.8T Coldstart Problem Post by: hammersword on December 22, 2010, 08:41:43 PM The solution is easy, it is a classic fault on some 1.8T versions! On cold start you will have that issue!
You have change the leak diagnosis or by deactivating at all, or you can start leak diagnosis at higher RPM from cold start, So if cold start is at 1300rpm, you can start leak diagnosis at 1400 rpm and the problem solved! very easy :) It has nothing to do with boost deviation, it is a leak diagnosis bug Title: Re: Audi S3 1.8T Coldstart Problem Post by: Dobermann on December 23, 2010, 02:12:45 AM The solution is easy, it is a classic fault on some 1.8T versions! On cold start you will have that issue! You have change the leak diagnosis or by deactivating at all, or you can start leak diagnosis at higher RPM from cold start, So if cold start is at 1300rpm, you can start leak diagnosis at 1400 rpm and the problem solved! very easy :) It has nothing to do with boost deviation, it is a leak diagnosis bug yes i thought about it !!! but where to find the limiter ??? im my s3 file i have found this diagnosis Schwelle Regelabweichung für Diagnose LDR-Regelabweichung positiv 1x1 01EB77 maybe this would be help too to change the boost deviation but if its easy only set the diag rpm up to 1400 oder 1500 that can be the solution !! Title: Re: Audi S3 1.8T Coldstart Problem Post by: nokiafix on December 23, 2010, 03:05:45 PM The solution is easy, it is a classic fault on some 1.8T versions! On cold start you will have that issue! You have change the leak diagnosis or by deactivating at all, or you can start leak diagnosis at higher RPM from cold start, So if cold start is at 1300rpm, you can start leak diagnosis at 1400 rpm and the problem solved! very easy :) It has nothing to do with boost deviation, it is a leak diagnosis bug By tweaking FVPDKLDUS or by setting all points to zero will stop the 17705 fault code and stop the limp mode that comes with it. Title: Re: Audi S3 1.8T Coldstart Problem Post by: TTQS on March 19, 2011, 06:53:50 AM this happens only on cold days !! maybe someone know what i mean and knows the a solution Have you considered that the fault code might be genuine and there might be a faulty component which is sensitive to low temperatures? I.e., before you go tweaking map settings to dial out a 'bug', are you certain you don't have any leaks in the charge air system or a faulty solenoid air divert valve or dump valve which could be sensitive to temperature changes? I haven't come across this so-called bug before, but boost leaks and faulty valves on the 1.8T motors are extremely common and they don't always throw DTCs, particularly in the case of 'sticky' solenoid-actuated valves. As we all know, leaks after the MAF sensor will result in an enriched mixture. Don't overlook the obvious. :) Another other issue that can manifest itself during a cold start (i.e. enrichment regime, e.g. for catalyst heating) is if there is a physical overfuel, for instance if a higher pressure fuel pump has been fitted, but the fuel mass to injector on-time conversion factor has not been re-calibrated to take account of that. 4 barg upgrades to the stock 3 barg fuel pump are popular with 1.8T motors but, from the Bernoulli equation, this will give an approximately 15% overfuel across the board. Just some general issues to think about... Doug Title: Re: Audi S3 1.8T Coldstart Problem Post by: hammersword on April 01, 2011, 02:59:00 AM this happens only on cold days !! maybe someone know what i mean and knows the a solution Have you considered that the fault code might be genuine and there might be a faulty component which is sensitive to low temperatures? I.e., before you go tweaking map settings to dial out a 'bug', are you certain you don't have any leaks in the charge air system or a faulty solenoid air divert valve or dump valve which could be sensitive to temperature changes? I haven't come across this so-called bug before, but boost leaks and faulty valves on the 1.8T motors are extremely common and they don't always throw DTCs, particularly in the case of 'sticky' solenoid-actuated valves. As we all know, leaks after the MAF sensor will result in an enriched mixture. Don't overlook the obvious. :) Another other issue that can manifest itself during a cold start (i.e. enrichment regime, e.g. for catalyst heating) is if there is a physical overfuel, for instance if a higher pressure fuel pump has been fitted, but the fuel mass to injector on-time conversion factor has not been re-calibrated to take account of that. 4 barg upgrades to the stock 3 barg fuel pump are popular with 1.8T motors but, from the Bernoulli equation, this will give an approximately 15% overfuel across the board. Just some general issues to think about... Doug Yes it can be faulty component but there are some standard ECU versions that have this issue after remap... On these versions you MUST deactivate leak diagnosis because it is software bug... "Tested with other software version and was ok" Title: Re: Audi S3 1.8T Coldstart Problem Post by: Dobermann on April 01, 2011, 06:38:57 AM this happens only on cold days !! maybe someone know what i mean and knows the a solution Have you considered that the fault code might be genuine and there might be a faulty component which is sensitive to low temperatures? I.e., before you go tweaking map settings to dial out a 'bug', are you certain you don't have any leaks in the charge air system or a faulty solenoid air divert valve or dump valve which could be sensitive to temperature changes? I haven't come across this so-called bug before, but boost leaks and faulty valves on the 1.8T motors are extremely common and they don't always throw DTCs, particularly in the case of 'sticky' solenoid-actuated valves. As we all know, leaks after the MAF sensor will result in an enriched mixture. Don't overlook the obvious. :) Another other issue that can manifest itself during a cold start (i.e. enrichment regime, e.g. for catalyst heating) is if there is a physical overfuel, for instance if a higher pressure fuel pump has been fitted, but the fuel mass to injector on-time conversion factor has not been re-calibrated to take account of that. 4 barg upgrades to the stock 3 barg fuel pump are popular with 1.8T motors but, from the Bernoulli equation, this will give an approximately 15% overfuel across the board. Just some general issues to think about... Doug Yes it can be faulty component but there are some standard ECU versions that have this issue after remap... On these versions you MUST deactivate leak diagnosis because it is software bug... "Tested with other software version and was ok" yes right !! you have to change 3 adresses an the bug is solved !! this problem happens by all 1.8T with 1 MB sw ( AMK and BAM) Title: Re: Audi S3 1.8T Coldstart Problem Post by: hammersword on April 03, 2011, 06:54:05 PM I have faced it only in some versions not all!
Not 3bits, just one. Leak diagnosis..... :) If you don't want to deactivate leak diagnosis you can set it to start from 1500RPM instead of 750 stock :) Title: Re: Audi S3 1.8T Coldstart Problem Post by: Dobermann on April 04, 2011, 05:52:46 AM I have faced it only in some versions not all! Not 3bits, just one. Leak diagnosis..... :) If you don't want to deactivate leak diagnosis you can set it to start from 1500RPM instead of 750 stock :) IN my Audi S3 and my Cupra R Sw is the stock value 520 rpm Title: Re: Audi S3 1.8T Coldstart Problem Post by: carlossus on April 04, 2011, 12:10:48 PM I have faced it only in some versions not all! Not 3bits, just one. Leak diagnosis..... :) If you don't want to deactivate leak diagnosis you can set it to start from 1500RPM instead of 750 stock :) Gents, ... I can't find any single "leak diagnosis..." values that have RPM as units. Can you elaborate? Title: Re: Audi S3 1.8T Coldstart Problem Post by: hammersword on April 04, 2011, 06:46:14 PM I have faced it only in some versions not all! Not 3bits, just one. Leak diagnosis..... :) If you don't want to deactivate leak diagnosis you can set it to start from 1500RPM instead of 750 stock :) IN my Audi S3 and my Cupra R Sw is the stock value 520 rpm Yes, I may remember wrong that factory setting.... Carl, this is 1bit value! I usually deactivate boost deviation and leak diagnosis, or increase the deviation to 500hpa so it is not so sensitive! BTW I have reach the point that the best setting for a big turbo is a MAFless setup. No leak problems No dead MAFs No crazy fuel trims cause of bad MAF or leak problems lol Title: Re: Audi S3 1.8T Coldstart Problem Post by: carlossus on April 05, 2011, 06:20:43 AM Quote Carl, this is 1bit value! So to completely deactivate leak detection is 1 bit (1 out of 8388608). What about the location where the detection threshold (RPM) resides. It sounds like a much better option to raise the limit than to disable it? Thanks! Title: Re: Audi S3 1.8T Coldstart Problem Post by: hammersword on April 07, 2011, 05:56:45 PM yes, I usually set it to 1500RPM
:) Title: Re: Audi S3 1.8T Coldstart Problem Post by: carlossus on April 08, 2011, 01:14:00 AM This feels like one of those conversations that has massive satellite delay.
Title: Re: Audi S3 1.8T Coldstart Problem Post by: nokiafix on October 25, 2011, 12:41:38 AM Did you ever soft this issues?
fvpdkldus has worked many times for me since. Title: Re: Audi S3 1.8T Coldstart Problem Post by: chiptuners on September 13, 2013, 05:47:10 AM LKVDKNMN use this factor 40 precision 1
set to 1400-1500 rpm should be fine. Title: Re: Audi S3 1.8T Coldstart Problem Post by: snakey001 on January 20, 2014, 12:42:05 PM IN my Audi S3 and my Cupra R Sw is the stock value 520 rpm I get this fault yesterday, outside temp -15c, i remember that is happend in my car every winter, third time now. I was change boost sensor every year. In my 225 TT is the stock value 520 rpm, but in my Golf 4 180hp is tehe value 400 rpm, now i try to change that to 520 rpm, lets see what happend in next winter. Title: Re: Audi S3 1.8T Coldstart Problem Post by: crank66 on October 27, 2014, 07:14:51 AM i have a problem i just have the same problems on coldstart every day
its an aum with an i set LKVDKNMN to 1520rpm but the error comes ervery day Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on January 14, 2016, 09:57:45 AM Think my 018J 360314 has the same issue.
I had 17705 and 17535 and the car runs like crap on cold stars until the lambda is hot. First i thought is is because of the 600cc Bosch but now i chanced the LKVDKNMN. I will report the other day when the car is cold. Title: Re: Audi S3 1.8T Coldstart Problem Post by: fknbrkn on January 14, 2016, 12:07:49 PM Think my 018J 360314 has the same issue. I had 17705 and 17535 and the car runs like crap on cold stars until the lambda is hot. First i thought is is because of the 600cc Bosch but now i chanced the LKVDKNMN. I will report the other day when the car is cold. im running these 600cs and never had coldstart problem. even in -20c you should check your injector scaling. Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on January 14, 2016, 01:36:38 PM i use the measured values from mil_on from the other post for tvub and temin/va
and its only on the first 2min at coldstart when its open loop Title: Re: Audi S3 1.8T Coldstart Problem Post by: fknbrkn on January 14, 2016, 01:52:18 PM i use the measured values from mil_on from the other post for tvub and temin/va and its only on the first 2min at coldstart when its open loop open loop should be fine when all ok. stock maf? youre running 298s? Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on January 14, 2016, 02:04:52 PM Yes, Open Loop is fine if we have 10 degree Celsius or more outside
Will try whats described. I have this bug but you dont. Title: Re: Audi S3 1.8T Coldstart Problem Post by: sonique on January 14, 2016, 03:48:33 PM i use the measured values from mil_on from the other post for tvub and temin/va and its only on the first 2min at coldstart when its open loop here its 298 injector calibration details mustang gt500 factory calibration voltage use example 14v 1,0440ms Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on January 18, 2016, 11:30:48 AM LKVDKNMN to 1500 worked for me :)
edit: worked NOT, it hat -6degree celsius yesterday and i had the same problems i chanced it to 10000 and this morning i had no problems! So hopefully it is fixed now. Will report Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on January 22, 2016, 04:56:12 AM Looks like it worked now.
The problem was that the car on startup revs above 1500 --> dtc Title: Re: Audi S3 1.8T Coldstart Problem Post by: sonique on January 22, 2016, 12:51:31 PM edit: worked NOT, it hat -6degree celsius yesterday and i had the same problems i chanced it to 10000 and this morning i had no problems! So hopefully it is fixed now. Will report I said to you EDLDRP not set 1250? Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on February 23, 2016, 12:16:49 AM sooooo there is a loop of reving up and down again
What i did lately: Changed my kfped to a linear (values like the column, 10, 20, 30, and so on) Changed the lower values of KFZW/2 back to stock. If i start my car and drive out of the parking lot WITHOUT touching the pedal at all, the revs start to hoover and i have to shut down the car to end it. Maybe its related to kfmres/k, idk. No file, no log at the moment. Just wanted to post my new problem. Title: Re: Audi S3 1.8T Coldstart Problem Post by: nyet on February 23, 2016, 12:18:38 AM Log pedal position and req torque?
Title: Re: Audi S3 1.8T Coldstart Problem Post by: aef on February 23, 2016, 11:52:10 AM Changed KFPED back to stock because it was no fun to drive and i modified it just out if interest, lol.
What i think is the problem on coldstard: There is a high load because of KFMRES/K. If i hit the pedal 3degree, i only requesting 3% and not 20+% like the stock value was. |