Egr -off, keep asv, fabia BLT 1.9

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Egr -off, keep asv, fabia BLT 1.9

Postby Tonysandberg » Sat Sep 03, 2016 1:01 pm

Hello,
Im trying to delete my egr on my skoda fabia rs with 1.9tdi, engine code BLT (edc15p+)
I will raise the values in the regular egr maps to 850
Do I need to mod the hysteresis or switch map when I want to keep the function with the anti-shudder valve?
Maybe only the hysteresis
The questions came up due to having a edc15p+ ECU that would be different from regular edc15p having the hysteresis maps for egr.
(file is available in rate my tune section)
Regards, Tony

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby sandor1987 » Sat Sep 03, 2016 2:17 pm

edc15 just edit all valleus to highest number
edc16 only hyst maps.

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby Tonysandberg » Sat Sep 03, 2016 6:10 pm

sandor1987 wrote:edc15 just edit all valleus to highest number
edc16 only hyst maps.

What do you base this info on?

i have done this mod in normal egr map already and It is normal procedure on most edc15 ecus but this is edc15p+ same as in many Seat Ibiza sport, but they have hysteresis and switch map also and have a bad habit of throwing dtc if you only make this mod( seen in several threads on here and other ecu forum)
I am guessing the switch map modification is needed when removing both egr and asv due to the BLT having an electric asv contrary to older/other PDs having a vacuum regulated asv together with the egr valve.
But when removing only egr valve it should be enough with normal egr map and hysteresis or just normal egr map.

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby Tonysandberg » Fri Sep 09, 2016 11:03 am

So answering my own topic with updates, i have raised the values and tried this solution and i still get egr dutycycle 20% so I will must look in to hysteresis since i do not want to use switch due too keeping asv.

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby Tonysandberg » Fri Sep 09, 2016 8:58 pm

This is a logg from the result of raising values.
You do not have permissions to view the files yet. You have to be registered and you have to make at least 3 quality / unique posts.

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby Tonysandberg » Wed Sep 14, 2016 1:07 pm

I have now driven over 600km and not gotten a dtc on egr regardless of what the egr function says in vcds so i guess it does work with only raised values when you keep the ASV.

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Re: Egr -off, keep asv, fabia BLT 1.9

Postby sandor1987 » Wed Sep 14, 2016 1:32 pm

upload your file so i can check if its done good ;)

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