Should I have the speed sensor replaced? on 1999 Audi A8

The dealer says the speed sensor needs to be replaced. The engine stalled out once. The check engine light comes on. Is it the torque converter?

by in Sarasota, FL on April 17, 2009
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3 answers
ANSWER by , April 17, 2009
The speed sensor is the engine rpm sensor. It tracks how fast the engine is turning over and sends this info to the computer. If it is defective, your car will stall or run rough not even start It is a common issue on Audi.
ANSWER by , April 17, 2009
Sporadic faults with the engine speed sensor are not uncommon and will usually set a fault code , though the check engine light may not illuminate. They are also suspect when all else fails with intermittent no starts/stalling issues. Your torque converter may be an issue if your transmission fluid level is low since insufficient fluid will allow the lock up clutch in the torque converter to apply when braking to a stop , stalling the engine.
ANSWER by , May 11, 2010
My check engine light caome on ,I took iy to advance auto hooked it up to the machine and the code read speed sensor I hae a 2001 Ford Ranger 2.3, and where is it located??