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TPS - P0123 Code

4K views 1 reply 2 participants last post by  rudeney 
#1 ·
Im hoping someone can provide me with some help. I have searched and searched many threads on this board but havent been able to find an answer to my problem. My 01 C240 with ~150K miles keeps throwing the CEL for P0123. Normally when its cold out the car will not accelerate. Push the pedal and it slowly, very slowly accelerates. Ill drive it for a couple minutes, turn it off and back on and it will accelerate normal again. Only does this when the car is cold. I recently replaced the Mass Airflow Sensor but that did not help. Im hoping to replace the Throttle Position Sensor but cant seem to find it for sell. Is this sensor part of a bigger assembly? Does anyone know where its located on the car? Anyone have any advice? Thanks!!
 
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