Hey all,

Have been trying to figure out throttle bucking for a little while now. Last week I decided I would just replace the throttle body (after almost everything else has been replaced). Installed it earlier today, car started, drove off.

However, while driving, it went into limp mode. Before turning the car off, the throttle was revving wildly. Did the throttle adaptations reset, car started, seemed fine. Drove off again.

And limp mode continues to return. Have tried clearing the adaptations in a few different ways, which seems to reset the car, but limp mode always returns.

DME code is P1635.

The new throttle body is a VDO unit. Unplugged the battery while replacing it. Cleaned the connector with electronics cleaner before plugging it back in. And made sure the plug was connected ALL the way in.

What am I missing? I am about to leave town and cannot replace the old throttle body in the car right now. <help!>