How are you testing the sensor? Are you using an oscilloscope? Checking resistance?
NOTE: If the crankshaft position sensor (L5) was replaced, a re-initialization must be carried out with STAR DIAGNOSIS in the menu item control module adaptations. Also there is a service bulletin on the crank sensor I can give you the rest of the bulletin if need be.
C-Class (203.061/064) with M112 (V6) Engine
E-Class (All) with M112 (V6) and M113 (V8) Engine
S-Class (220.170/175, 215.375) with M113 (V8) Engine
Rough Idle / Rough Running / Hesitation / Engine Won't Start
On the above mentioned models, if you encounter conditions of rough idle, rough running, hesitation or engine won't start with the following possible engine codes P2034, P2050, P2051 P2052, P2053, P2054, P2055, P2056, P2057, P2058, is possible that there is moisture in the crankshaft position sensor plug leading to corrosion of the contact pin(s). Please perform the following procedure to resolve.
Monday, November 18th, 2013 AT 12:29 AM