Salami
Autocross Champion
- Location
- North Carolina
- Car(s)
- MK7.5R
It's Daks we're talking about. It's better not to imagine.
7
Daks' GTI
- Thread starter Daks
- Start date
Your computer will blow up.
Salami
Autocross Champion
- Location
- North Carolina
- Car(s)
- MK7.5R
Especially after your done probing it
So I'm chasing down the mystery misfire at high RPM, sometimes it throws just an EPC, tonight it threw a CEL along with it. Cyl 3 misfire
https://datazap.me/u/daks/log-1664848911?log=0&data=8-15
https://datazap.me/u/daks/log-1664848911?log=0&data=8-15
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Have you guys tried less boost? Like flat 27psi?
I can't tell if the rail pressure freaking out is a result of the misfire or causing it.
I can't tell if the rail pressure freaking out is a result of the misfire or causing it.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Also, let's get a mod list since the original post doesn't have one.
Which HPFP? LPFP?
Which HPFP? LPFP?
When I was speaking to HPA when buying the turbo, they mentioned that they run is at 29psi and then taper to 25/26, which is essentially what Matt did with mine.
Matt suggests to test the ground with a multimeter to see if its the same output as the other three cylinders, as well as the cam actuators. But how do I check the cam actuators without replacing them? I already replaced one on cyl1 cause i bent it when installing the turbo, they're like $160/pop and that one threw a code. IO don't want to throw $400 for something that's not throwing a code.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Well I doubt it's an actuator issue but since the misfire is always cyl3 (yes?) moving the 2 actuators from cyl3 to another cyl would make the misfire move, yeah? An actuator not functioning would 100% throw and actuator code though.
Good point - should I try to do that? My thinking is aligned with yours after that bent actuator I had. We DM'ed about a speed sensor, some audi guys are experiencing an EPC up high due to an engine speed sensor fault, no codes.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Ever since they took you from v1.05 to final you've had a rail pressure spike.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
It was spiking back on May 12.
https://datazap.me/u/daks/log-1652360926?log=0&data=15-34&solo=34&mark=392-409
https://datazap.me/u/daks/log-1652360926?log=0&data=15-34&solo=34&mark=392-409
Just went through my emails with Matt, I started seeing that EPC since the second revision of the tune, back when I had the HPA HPFP. Came early and stayed.
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Care to try v1.05 and see if it still happens?