The solution is here : Nissan Sedan P0325 Possible Solution : Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Allow the engine to warm up and aim the timing light toward the timing marks on the harmonic balancer. This means that the wiring harness in your engine bay has somehow become damaged, or your knock sensor has failed. No more light, no more codes, and a passing vehicle emissions test. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.
I've downloaded the service manual but I can't find where the knock sensor is located. The P1320 refers to the ignition coil and wiring. Hi, The two codes seem to be related. Hint: this test can also be performed by monitoring the ignition timing on a instead of using a timing light. Basically the P0325 refers to the knock sensor and associated wiring. They mount the knock sensor in the lifter valley of the block on these engines. Nov 28, 2009 P0136 indicates a bad O2 sensor.
Spark plugs typically need to be replaced every season or 25 hours of use. The computer can also normally identify the specific cylinder in which the misfire has occurred. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory. If not, the sensor is bad and should be replaced. A knocking vibration from the cylinder block is sensed as vibrational pressure. Without a signal from the knock sensor, many engines will curve the timing and power output to make sure that the engine is not knocking.
How does a mechanic diagnose the P0325 code? Even chain guides on early Q don't cost that much labor. When the sensor malfunctions, two common complaints become a noticeable lack of performance and a major decrease in miles per gallon. Be careful when removing the accordion like intake coupler, as rips and tears can occur if you are rough. Could someone please send me a link? What you do is relocate the knock sensor to one of the plenum bolts. This code may be seen with other knock sensor codes and lean condition codes. It allows the engine control module to provide maximum ignition timing advance until it hears an engine ping. This pressure is converted into a voltage signal and sent to the Engine Control Module.
This triggers a Check Engine Light to be illuminated on the dashboard. Material may not be copied or reprinted without written permission. Their proximity to the engine block means that they are often susceptible to damage. The Nissan Pathfinder and the Maxima are two automobiles that fit into this category. For one thing, these old rides are getting towards the end of their life span.
In addition, some four-cylinder models carrying the 2. I'm having some trouble finding the wire that goes to the knock sensor. The sensor is attached to the cylinder block, cylinder head or intake manifold. The are in the same place and also fail. You may interpret this as problem with the transmission shifting. A good place to start would be to check the wiring leading from the sensor and see if any of it has been damaged or frayed. If engine knocking occurs, ignition timing will be suppressed to prevent it.
Typical old-style knock sensor circuit Courtesy: alldata. Although 10 different knock sensor codes can set from P0325 through P0334 the most common code you'll find is the P0328. Not only that but your intake runners and engine will be open to the elements, and all it takes is one nut, washer or socket to fall in to ruin your project. Next, connect the red multimeter lead to the battery positive terminal and the black lead to ground. Modern internal combustion engines utilize the knock sensor to allow for aggressive timing.
The sensor is located fairly deep under the intake and can be difficult to remove and replace. I soldered the wire back together, wrapped it with some tape and voila! Also I just went outside and took one of the front driver's side of the engine. Inside, the knock sensor is a piezoelectric crystal. Do not pull these from your plastic valve covers, simply use a needle nose plier to squeeze the end and push through the slot. Knock Sensor for 4th generation Maxima: Check out some cool tools that Ozzstar likes to use: If the Ozzstar Channel has helped you out consider donating by visiting my Patreon page. Probably need to clean your contact strips for your wheel. Not that hard, again just need to make sure nothing falls into the engine.
In this article will explain why it's worth your time to address the problem. Unfortunately, it's a common occurrence for a Nissan knock sensor code to set on some of the automakers most popular engines and model automobiles. Hello Folks: My wife took the car to the local auto shop becuase of the engine Service engine soon light was on. Spark plugs typically need to be replaced every season or 25 hours of use. After reading in this forum I found out bosch was bad! Take some time now to clip the plastic retaining rings around your fuel injector harness.
Crank the engine, put the vehicle in gear and keep your foot on the brake. One of the thin wires that connects to the O2 sensor was broken and hidden under a plastic cover. The problem is caused by the variable cylinder management system switching on and off during light throttle conditions, at cruising speeds, or when driving on flat roads. There are two securing 10mm bolts that hold the wiring harness in place. Remove your ram air ducting and intake box along with air filter housing by undoing the long 10mm mounting bolts. Next I will change the spark plugs and clean the throttle body, not necessarily in that order.