Ok. The Check Engine light went on again while I was driving to church. I got back home and jumped the wires to get the code and got a Code 54.

It says: CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor


Ok. So what the hell does that mean? Someone please explain to me what that means and how I can fix it. Thanks.

 

ttt

 

check the sensor it is the one behind the crankpulley. wires might have gotten cut or unplugged

 

if I keep driving it like this, will it mess anything up? Or is it nothing to worry about?

 

I just went downstairs to reset the ECU to get the CEL off, but to my surprise, when I turned the car on, the CEL was already gone!

Can it do that? It was one yesterday, and today, its gone. What happened?