For example, t … he manual calls for the timimg belt to be replaced at 120,000 miles if memory serves so you may as well tackle that also. When the sensor malfunctions, two common complaints become a noticeable lack of performance and a major decrease in miles per gallon. Although 10 different knock sensor codes can set from P0325 through P0334 the most common code you'll find is the P0328. I'm a big believer in verifying failed components. Your loved ones want your vehicle to give you a relaxing ride along with reliability; obviously you bought a comfortable cruiser like the suburb-friendly Nissan Quest. Testing the Knock Sensor before Replacing It Maybe it's not a failed knock sensor? In fact, after you crack the bolt loose you can spin it out with your fingertips. Look between the radiator and the engine.
Just warning you that it's not always the Knock Sensor despite the trouble code!!! For more information, go to www. Once again pay no attention to the plug pictured. When you extend your o2 sensor and maf plug your gonna need some more shielded wire as well. Push the slack towards the barrel, rotate it about 90 degrees so the cable comes out of the slot, and remove the cable. Standing on the driver's side, look down under the intake manifold, and you'll see a gap between that and the engine block. Be careful not to break the connector. Putting a good working Nissan Quest Knock Sensor on your vehicle allows you to check the timing of the vehicle's cylinders.
When detected it then slightly backs off the timing. Any vehicle carrying the 3 L V-6 engines from 1990 through 1999 will eventually need this repair. I've seen a few other threads for other models discussing relocation, but nothing posted so far here regarding the Quest. Using a 12 mm stubby box end wrench seems like the best strategy to remove the bolt. The black is just a ground so you should be fine. Remove the bolts using a 9 inch or longer extension.
It should run for a few seconds then shut off. Rotate the throttle cams to the open position, with the slack in the cables slide them free of the cams. Problem stalling and not starting was not the sensor. This is difficult You have a long hard road in front of you. This part is also sometimes called Nissan Quest Engine Sensors.
Maybe you're getting a code for a sensed knock that it can't correct totally, not for a bad sensor? I was no longer getting the P0325 code, but there was no way it was drivable. Precisely; 1999 subaru outback, 2. It's way easier to replace as it's on the top of the engine on the firewall side. Alternatively, you can just cut the wire and remove the old sensor and disconnect it from its mating connector Look at the connector on the wire carefully so you pull on the right part! The powerful look of Nissan vehicles gives aggressive function and long lasting durability. The Nissan Pathfinder and the Maxima are two automobiles that fit into this category. I have the dreaded P0325 Knock Sensor code on my wife's '01 Quest. Outer insulation, shield, inner insulation, and the actual wire.
If that's the case, be prepared to get giggy with this engine. It is located under the intake manifold, bolted to the middle of the engine block. I also have to change the knock sensor in my 97 but have been hesitant just because I know how difficult it is to get to. A Nissan Quest Knock Sensor is a component that lets your motor to run at optimal range and reduces fuel consumption. Once a noise is detected, the knock sensor sends a signal to the cars computer which in turn will retard the timing at 2 degree intervals until it corrects the issue.
What you do is relocate the knock sensor to one of the plenum bolts. The sub harness I had ordered for my '01 Quest Nissan part 24167-7B200 helped figure this out. New: A brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. Then look for the knock sensor attached to the engine block higher than the oil filter. You can see the sensor sticking out ot the pipe. It's screwed into the engine block with a 12 metric bolt. Make sure you clean up all the debris surrounding the hole, otherwise this wont work!! For one thing, these old rides are getting towards the end of their life span.
I just want to make sure that I am not going crazy. Wear mechanics gloves if you attempt this since you will definitely cut your hand on the sharp edges of the engine block. One of the things that shock me is the far-reaching number of automobiles affected by this Nissan knock sensor code. It allows the engine control module to provide maximum ignition timing advance until it hears an engine ping. A knock sensor is like a small electronic microphone that is usually attached to the engine block and listens for a couple of things that a engine might do.
Make sure all the plugs are okay and dry, with diaelectric in them. I just removed mine from the bottom while lying on my back in the driveway. Remove the bolt and there's enoug … h wire to pull out and remove the wiring from the sensor. The best advice I've seen recommends removing the oil filter first. Then you put a new manifold gasket on and put the manifold back on making sure to tighten all bolts. Second questions, where to relocate this on the Quest? The knock sensor appearance has been described as a small donu … t.
The wires run all the way down to the plugs you hafta splice anyways, so no need to run wires all the way back to the ecu. Check for power to the fuse. Since the location is low the easiest way to get to it is to raise the car and approach it from the bottom. It can be accessed from under the vehicle. I've managed to free the connector so it can move around a bit, I can see both ends of the connection not at the same time , I've rotated it, nothing that looks like a release tab anywhere in sight. The shield portion stops just a bit before it gets to the knock sensor plug. But heres a better pic.