Car won't stay on after replacing crank shaft position sensor??
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My car would turn over but would not start. I tried about 5 times and it finally started with the check engine light on. It also started perfectly fine two times after that with the check engine light disappearing. I took it to AutoZone to run OBD 2 and the error code was a faulty crankshaft position sensor. I replaced the crank shaft position sensor, only removing the engine cover and the mass air flow sensor for easier access to remove the craft shank position sensor. Now when I start my car it turns on with no check engine light but the RPM's jump to about 2000 and then drop to either 500 or below and then it dies. I am able to keep the engine running if I keep the RPM's high by applying gas. Could it be the Mass Air Flow sensor or something worse?
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The crankshaft position sensor will set a code simply due to stalling in general at times. It may not mean the sensor is or was faulty. However, I would ensure that all components have been reassembled properly, since you did remove the MAF sensor and other components. Retrace your steps and ensure all is connected as required. Further testing for the air intake system, fuel system and ignition system may be required.
