Quote:
Originally Posted by zx10guy
I figure I would just start my own thread on this as I've been pretty vocal about my problems. So I finally got to the point with the drivability issues I got the car into the dealership. The car was literally almost undriveable in the horrid stop and go traffic of DC with the A/C on. Idle stumbling, then surging. With the surge, the car would want to jump forward. You can imagine how this is like when you're stop and go for several miles.
So I got an update from my SA today. Here are the notes the tech put into the system and they think they got it fixed. We'll see. My SA test drove my car with me in it when I dropped it off. I wanted to make sure he knows what I'm dealing with. He wants to test drive my car again to make sure the problem is really gone before releasing it back to me.
VERIFIED CUSTOMER COMPLAINT, TEST DROVE THE CAR
NOTED VEHICLE IS EQUIPPED WITH DCT TRANSMISSION AND SEEMS
LIKE THE STALLING ISSUE IS RELATED TO BOTH ENGINE AND
TRANSMISSION. ATTACHED CHARGER, PERFORMED SHORT TEST, NOTED
UNDERVOLTAGE FAULT PRESENT. RAN "ENERGY DIAGNOSIS" NOTED LOW
STATE OF CHARGE WAS PRESENT FOR 4 DAYS. (NOTE THAT VEHICLE
WILL BEHAVE DIFFERENTLY WITH LOW BATTERY VOLTAGE" RAN "IDLE
SPEED" TEST PLAN AND BUMPED THE IDLE FOR AC AND LOW VOLTAGE
CONDITIONS BY 100RPM. D6121 00ENDIAG 73 507, D6121 00000000
01 901 TEST DROVE THE VEHICLE NOTED STALLING ISSUE IS
RESOLVED BUT VEHICLE STILL SURGES FORWARD. RAN "DCT
TRANSMISSION FLUSHING FUNCTION" AND BLED THE ENTIRE COOLING
LINES. RAN "GEARBOX ADAPTATION TEST PLAN" AND RE ADJUSTED
BOTH TORQUE CHARACTERISTIC AND ALSO TRANSMISSION SLIPPING
POINT. TEST DROVE THE VEHICLE AROUND TO SET A BASE LINE FOR
TRANS AND ENGINE ADAPTATIONS
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I had the same issue back in 2011.
The issue is that 1 of 2 things
1) Your ecu module is never updated or hasn't been updated to the newest update
2) your ecu module is fried
I took my car when I had the idle issues and they changed the entire module and hadn't had any problems so far.
as for the dct issues I don't think it has to do with the idle that is its own problem that needs to be checked out on.