Originally Posted by upallnight

Stopped over a Spunbearing last friday and connected my bluetooth scanner to his car. At first non of the 02 sensor was providing any data and the engine had a chugging noise to it.

I attributed the no data to the fact that the engine was in open loop so the 02 sensors had no input into the operation of the engine, but in open loop the engine should have been running smoothly base on predetermine data. One thing that stuck out was the throttle showed 0.

0nce the engine did warm up it went into close loop and the 02 sensors were reporting data as it should. The long and short term fuel trim were within the operating parameters.

The only thing that was still a problem to me was that the throttle was still at 0. On my X the throttle data showed 9%.

Anyone on this forum ever have a throttle body go bad on them? What were some of the symptoms?