What is the purpose of the crankshaft position sensor?

Question

I was driving my car yesterday when it all of a sudden came to a complete stop in the middle of the road. I tried to restart it. The car came on but did not start up. The shop told me i had to replace the crankshaft position sensor. What is its purpose?

Answer 1

That sensor tells the computer exactly when to fire the ignition and shoot the fuel.

Answer 2

The crankshaft position sensor (CPS) is a very important sensor on todays modern engines. The CPS takes the place of the distributor on older engines. The CPS picks up a signal from the crankshaft to determine when to fire the spark plug and when to send fuel through the fuel injectors. The CPS provides a more accurate timing than was available with the old distributor.

Answer 3

A crank position sensor is mounted on the cars flywheel and tells the computer that the engine is turning and at what speed so that it can spark the spark plugs at the correct time. it also uses this sensor to help determine where to set the engines timing. A cam sensor is also used and it is the one that tells the computer when to pulse the fuel injectors. some cars have the abilitly that if one goes bad it can guess of the other ones reading and still make the engine run.

Answer 4

These days most all cars have many sensors that the computer controls! It is supposed to make the vehicle run more efficent for you, as in mileage,performance,etc

Answer 5

The purpose??? Nothing...just another stupid sensor.... new cars now have at least 100 useless sensors on them..... who cares what the position of the crankshaft is.... man!! Why do they build cars with so many stupid useless sensors??

Answer 6

yes the new cars have a sensors for every thing.

Answer 7

is this a jeep?....same thing happened to me