911f

Thx you sir this is the limit after that the ecu shut down the throttle,did you read the log?

AlexZTuned

That’s really fast! Fix your bank 2 O2 sensor 😋

looks like your boost is peaking at 3000 HPA - 43.5 psi, subtract 1 bar atmosphere (14.5) and you’re at a solid 29 psi.

The ECU shut down may be your PDK/TCU going into limp mode because you’re exceeding the torque limiter.

911f

Thx Alex so yes pdk shutted down the throttle but happen only one time.my boost gage show's 31psi so im exceeding 3000hpa.
My 02 sensor should be fix this week or next,
Is the ecu pulling back fuel in my fuel trim cuz im adding meth?
Do you think ecu copy paste bank1 to bank 2?that would sound logic to me...
@AlexZTuned

AlexZTuned

That PDK limp mode happened too often when I ran E85, we weren’t able to tune around the torque limiter - it wasn’t until I switched to E40 and increased the boost a bit to match E85 power that the PDK has been happy and no limp mode.

It’s not a fun thing, the car shakes, you lose most throttle input and it sounds like a diesel misfiring until you restart and clear the codes.

I’m not deep enough in the weeds of tuning to say that if you have a dead O2 sensor, it’ll replicate the AFR on the other bank. Doesn’t seem right to me, but maybe when you go into open loop on wide open throttle, the ECU is using other parameters outside of the O2 to keep AFR’s in check.