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Originally Posted by KarTek
Probably provides RPM reference for idle speed management, rev limiter and lets ECU know the car is running for the "auto start" function. I'd like to know more about it myself...
Is the car stalling only at idle? Does it seem to have trouble maintianing a steady idle when it stalls or does it stall at higher RPM's and speeds as well?
The sensor is on the left side of the engine at the back in the rounded part of the block that joins the transmission. The wires pass out of the sensor and around the starter and are incorporated into the starter wiring harness to go wherever that goes. Maybe the sensor wires are getting too close to something related to the starter and they're getting an EMP from the starter or it's wiring which finally kills the sonsor... shrug...
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This came out of my shop manual, and the manual contains about 10 different sections as to how to check it.
The task of the crankshaft position sensor is to detect the position and speed of the crankshaft through a non-contact measurements using the segments provided on the drive plate, or the flywheel, and to supply the corresponding signals to the IFI (ERE) control module(N3/7) or the DFI(EVE) control module.
The crankshaft position and engine speed are detected with no contact required. With the engine running, the leading and trailing edges of the flywheel segments generate an alternating voltage through induction in the crankshaft position sensor. The higher the engine speed, the higher the voltage.