Hallo world ;-)
Since a half year i am driving a Audi S3 8l 9-2000 APY, the has done 106000km. I bought the car in Germany and was already chipped by Digitech (235bhp).
Now after a half year my boost seems getting worse. This is how it looks today, 3rd gear 2000 to rev limit:
So what did i do so far:
- new MAF sensor (new maf 198 g/s, seem fine to me)
- new N75
- check for fault code's, never had any engine related fault codes!
- Pressure test with compressor
- tested the DV, perfecly holds vacuum
I also logged the lamda and the fuel trims:
Witch also seem fine?
Then i checked Block 020 Timing ******, and is showing all zero's in all collums...looks a bit to good?
Last weekend i did a pressure test. I pressurized the system till 20psi, the system holds te pressure for 5-10 secs, the most of pressure is lost trough the PCV return hose. If i hold my thumb on the PCV return hose its leaking trough the oil filler cap. I dont think this is normal...?
So it's hard to do a pressure test, besides the pcv return i dont hear a pssssss. The IC hoses are quite hard under pressure.
And what about the Digitech software? I red somewhere it could conflict with the audi software and that they turned off the timing ****** (knock). Is this why i have all zero's??
Here a some pressure log from a half year ago till now:
When everything looked good
When things getting worse
Above, first pic, how things today are.
Last a log in 6th gear, 3000rpm to 5000rpm (alread dubble speed limit ;-))
Since a half year i am driving a Audi S3 8l 9-2000 APY, the has done 106000km. I bought the car in Germany and was already chipped by Digitech (235bhp).
Now after a half year my boost seems getting worse. This is how it looks today, 3rd gear 2000 to rev limit:
So what did i do so far:
- new MAF sensor (new maf 198 g/s, seem fine to me)
- new N75
- check for fault code's, never had any engine related fault codes!
- Pressure test with compressor
- tested the DV, perfecly holds vacuum
I also logged the lamda and the fuel trims:
Witch also seem fine?
Then i checked Block 020 Timing ******, and is showing all zero's in all collums...looks a bit to good?
Last weekend i did a pressure test. I pressurized the system till 20psi, the system holds te pressure for 5-10 secs, the most of pressure is lost trough the PCV return hose. If i hold my thumb on the PCV return hose its leaking trough the oil filler cap. I dont think this is normal...?
So it's hard to do a pressure test, besides the pcv return i dont hear a pssssss. The IC hoses are quite hard under pressure.
And what about the Digitech software? I red somewhere it could conflict with the audi software and that they turned off the timing ****** (knock). Is this why i have all zero's??
Here a some pressure log from a half year ago till now:
When everything looked good
When things getting worse
Above, first pic, how things today are.
Last a log in 6th gear, 3000rpm to 5000rpm (alread dubble speed limit ;-))
