Bad output speed sensor. Help!

**vv15629** · 09-03-2008 08:03 AM

My check engine code tells me i have a bad output speed sensor. Does anyone have a diagram on this things location or instructions on replacing it. where you can buy one etc....

**vv15629** · 09-05-2008 08:07 AM

bump

**FourRings80** · 09-05-2008 08:22 AM

bad engine speed sensor:

http://www.audizine.com/forum/showthread.php?t=189115

**vv15629** · 09-06-2008 08:42 AM

thanks but i beleive mine is a bad output speed sensor, not engine. I pulled a different code then that one

**eg6siR** · 09-06-2008 10:10 AM

the sensor is on the side of your transmission... near the rear, it measures the speed of the transmission output shaft. it uses that measurement in correlation with the input shaft speed to determine when to change gear ratios. get a new sensor before you destroy your tranny.

**AudiA6Biturbo** · 09-06-2008 01:48 PM

Is your tranmission a CVT?

**vv15629** · 09-06-2008 03:19 PM

im not sure if its cvt or not, but im was told when the primary sensor goes up it automatically goes to the secondary sensor

**AudiA6Biturbo** · 09-07-2008 07:56 AM

The reason I ask is b/c there is a TSB for this condition on CVT's which involves replacement of the TCM. PM me your VIN and the Pxxxx code you come up with when you interogate the ECM