After tuning my RS5 with JHM Stage 2, I ordered the VCDS cable and hit “checking throttle valve adaption” and I keep getting the error “system not OK”.
Does anyone know what will be causing this?
From Ross-Tech:
There are certain test conditions that must be met before doing a TBA:
- No DTC’s in the Engine Controller
- Battery voltage at least 11.5 V
- Throttle must be at idling position (keep your foot off the gas pedal)
- Throttle body part must not be dirty (carbonized).
- Coolant temperature must be between 5 and 95C
- If fault codes were cleared cycle the ignition off and back on prior to running Basic Settings.
Only thing I didnt check was battery voltage, will check that next time.
maybe try it again with the car on a battery charger just to be sure?
How did you go with this ?
CamFio - I have a 2013 RS5 and have added a JHM tune, and have experienced a similar set of issues to what you described with the throttle body adaptation. Did you figure out what the problem was?
The tune itself isn’t going to cause any issues. But if you continue to have issues make sure the battery is in good shape. And then make sure to watch the throttle blades under idle and light revs.
Thanks, I’ve confirmed its not the tune, and recently replaced the battery. The issue persists. Both throttles move when pressing the pedal, but they flutter a bit. I also can’t get the adaptation to complete about half the time, but I’ve noted that if I connect a trickle charger for a while, it completes, but says “system not ok”.