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Ok! Both codes have to do with the Crankshaft position sensor. The P0335 means that you should replace the sensor, the 2a94 tells the pcm what code to display for the problem. Here is somthing you can do to make sure the sensor is really bad: If you unplug (or lose power to) your PROcede while the car is running. Or tried starting it while it wasn't plugged in fully, you will throw that code. Just clear it and see if it comes back. If it reoccurs while the car is driving, then you might have a bad Crankshaft position sensor.
need to replace the camshaft sensor also in tandem w/crankshaft sensor. trouble codes need to be removed from computer. after repair. both the air & fuel filters need replaced. how's your oil change doin ? try this brandi, see if that takes care of it .
If it has a code for loosing the crankshaft position sensor signal, I would certainly start looking at that before venturing into the fuel system. Cam and Crank sensors are a common failure item for Nissans of that era. Nissan actually redesigned the sensor and i think they performed a recall on some vehicles. They are fairly inexpensive and easy to replace. I believe they run about $40 each. Because most people don't have access to a powerful scanner or a digital storage oscilloscope to verify the failure I recommend replacing the cam and crank sensors at the same time.
Note - not a solution..just adding my woes! I drive a 2003 Nissan Sentra SE-R Spec V. My car suddenly stalled 1 day and the engine wouldn\'t turn over. Brought it to my mechanic and had the Camshaft position sensor replaced by my mechanic. The car ran fine for about 2 weeks and then the light was back on with the initial symptoms.
Took the car into the dealership and they diagnosed it again as P0335. Said that the mechanic hadn\'t installed the sensor correctly. Charged me a bunch of money to replace the thing and not too long ago the check engine light is on. The Revs bounce around everywhere. Checked the code again and it\'s P0335 yet again! Am in talks with the dealership to get to the bottom of this...
In the kit there are two sensor that look identical. The one for the crankshaft has a white paint mark on it near the bolt hole. Make sure that it is in the right location.
After the new sensors are installed and the code still comes back, replace the timing chain. They have been known to stretch and cause the P0335 code on these engines.
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