Crank sensor

[Strider]

Hi guys,Anybody knew how to detect a nearly defective crank sensor?I had a bad experienced with this crank sensor twice; both on different model. The engine just simply shut off. And to make thing worst, the first experienced right in the middle of a traffic jammed. The second one was at my office car park. On both occasion I need to tow the car to the workshop. Other than the hassle of towing, it will add-up to the repair cost.Thanks for any input here.

 

[James Chun]

You Will Have Hard Starting When Crank Sensor Going To " Kong"!!

 

[jarance]

You can detect a faulty crankshaft sensor but not sure about the way to detect the "about to kong" sensor.

Based on my 2 experience of sensor failure.

1. Engine die off but manage to restart. Happen a few time before finally kong.

2. Second time, engine just die and never restart again.

 

[budakbarublaja]

mine hard to start....is it becoz of dis sensor????or my starter is ready to kong???

 

[pussy]

Strider... crank sensor to check is to use a multimeter to see the ohm rating to be above 1000miliamp versus 1200 milliamp new..
anything below it, is going to kaput..

btw, this crank sensor applies only to M30,M20,M40 engines, when it dies, the car can't start, as for the newer engines, M50,M52,M43 above, the car will be able start even the crank sensor dies, cos it has a secondary sensor which is a cam sensor..hence it will not get you in trouble.
but a bad crank sensor syntoms are rough idling..

regards.

 

[Strider]

Thanks everybody. But uncle Pussy, my m43 did died just because of the crank sensor. Anyway thanks again for the technical explanation.

 

[jarance]

Strider... crank sensor to check is to use a multimeter to see the ohm rating to be above 1000miliamp versus 1200 milliamp new..
anything below it, is going to kaput..

btw, this crank sensor applies only to M30,M20,M40 engines, when it dies, the car can't start, as for the newer engines, M50,M52,M43 above, the car will be able start even the crank sensor dies, cos it has a secondary sensor which is a cam sensor..hence it will not get you in trouble.
but a bad crank sensor syntoms are rough idling..

regards.

bro, its is 1280 Ohms not milliamp. Ohms is resistance whereas milliamp is current. Ohms law states that Voltage (V) = Current (I) X Resistance (R).

BTW, please ensure that the gap between the the sensor and crank teeth is 1 mm +/- 0.3 mm.

 

[pussy]

opps.. thanks for the correction jarance...


regards.

 

[pussy]

Thanks everybody. But uncle Pussy, my m43 did died just because of the crank sensor. Anyway thanks again for the technical explanation.

funny.. on my M50, my crank sensor was reading was low, had the fault code, after changed it, it was okay..:top: