EDC15 - switch from MAF to MAP - problem with pressure

by **zerox007** » Mon Aug 17, 2020 11:01 pm

Logs.zip

Hello,

I have Fabia 1.9TDI 74kW ATD, and I tried switch from MAF to MAP.

After this change I have problem with pressure request and actual pressure after, on 4th and 5th gear, we can look it in log.
Log does not meet the requirement in the turbo and N75 map after exceeding 2500 rpm.

At the 3rd gear everything looks OK.

Can you please help me what can I do better.
I am attaching a modified file and logs files for checking.

Thank you.

by **zerox007** » Tue Aug 18, 2020 2:44 pm

I found this topic on another forum and issue may isn't at switch from MAF to MAP.

But no result.

by **zerox007** » Fri Aug 21, 2020 12:49 am

I did to load the original SW and perform a new logging. The problem may be in the MAF, turbo, N75 or air loss, it may be from the intercooler.

by **zerox007** » Sat Aug 22, 2020 3:31 pm

It is possible then is problem in high IAT(intake air temperature)? When temperature goes over 70°C does ECU will reduce boost request.
In the SW is map Boost correction by temperature witch is calibrated to 70°C, after this, according log, reduce boost request.
May is not problem but only feature.