Volvo S70, Volvo 850 Crank sensor replacement, P0335 - Video
 

I scanned a S70 the other day and it come up with a code P0335, crank sensor signal. I'm sure it's the same in the 850's. It made the car stall and run rough but the lady did get home. So I order a crank sensor and changed it. Took about 15 minutes. Here's the video: