Auto Scanner: Nissan Pathfinders often have knock sensor failures - The Salem News
Q: My 2000 Nissan Pathfinder was diagnosed with a knock sensor problem after a mechanic scanned the OBD2 codes. The car has no apparent power-related issues nor is a knock apparent. He suggested replacing the sensor at a cost of about $600. Are there other do-it-yourself repairs that I can do before replacing the sensor, such as plugs or ignition wires or new gas cap. A: The Nissan Pathfinder knock sensor failure is very common. If it truly is a knock sensor failure, then replacing other parts is certainly not going to do anything short of draining your bank account. However, you provided me with four codes, two of which pertain to oxygen sensor problems, and another for an evaporative emissions system malfunction. There is only one code, P0325, that refers to the knock sensor. Just weeks apart, we have had two control module failures. First, the audio module, and then, an information module located in the driver’s door. A few problems come to mind that would cause this problem. When a diode goes bad, it will allow AC current into a DC system, and this will fry computer parts faster than you can blink an eye. The check automatic transmission oil temperature light started blinking a few weeks ago and the dealer replaced. Source: www.salemnews.com
