I've been getting the codes P1361/P1362 every several months. These are related to the crankshaft position/TDC sensor behind the crankshaft pulley. I reset them with a code reader and all is fine for several months. Then either returns. There is no problem driving the car, but occasional difficulty starting the car. Yesterday P0335 appeared (also related to the crankshaft position sensor.) This was accompanied by poor acceleration. I reset the code and all has been fine so far. I have checked both connectors under the engine that carry these signals and they seem fine. Just for good measure I unplugged and plugged them back.

How likely is it that the sensors are actually bad? I don't mind replacing them since I have a timing belt replacement due and I'll have to get down there. But the sensors are rather expensive ($200) and I'm wondering if there's some other reason for the codes (other than sensor failure.) I see oil leaking out of the bottom of the lower timing belt cover and wonder if the oil has anything to do with the codes.

I don't see any posts here concerning sensor failure so I'm inclined to think it's not common. My car has 160k miles on the odometer.

-Kofi

 

The oil is probably the front main seal which you would want to do when the timing belt it done. You can "bypass" the sensor and see if it changes anything
http://www.ff-squad.com/technet/ckftrick.htm