Dbw tb issue, stops working then works

[Ben Charles]

Tuning on a cam 07 trailblazer that's acting odd. When driving and logging etc desired position throttle will stop working n the pedal has to be lifted for several seconds until throttle comes back n acts normal. I am posting this by phone n will post a tune if need be but I highly doubt it's the tune due to no etc tb changes.

It's a factory tb setup, n I've changed tb's n still did the same thing. The motor has recently been out so I'm guessing it's a wiring issue, anyone have any tips or ideas?

Thanks, Ben

[Ben Charles]

Apparently its in the Trans Tq management settings, have to use a value of some kind instead of 0 or it will freak the pedal out. Plan to try out and report back. Learn something all the time.

[Bocephus79]

Having close to the same issue. Was this resolved with the TransTM?

[MikeOD]

It's happened to me with 2 TBSS's. Don't put max/min values in the torque management settings...if the max is 6042, set them to 6041. Your problem will go away.

[Bocephus79]

It's happened to me with 2 TBSS's. Don't put max/min values in the torque management settings...if the max is 6042, set them to 6041. Your problem will go away.

Thanks, Did that and I have a week of driving with zero issues so far

[MikeOD]

Thanks, Did that and I have a week of driving with zero issues so far

It's some kind of bug in the OS on those E67's...I've only ever seen it happen on the TBSS's...nothing else. Don't think it has anything to do with what tuning software is used either.