Question about Toyota Highlander
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Posted on Jan 02, 2017
SOURCE: knock sensor
The knock sensor threads into the side of the cylinder block.
The knock sensor threads into the side of the cylinder block in front of the starter.
Posted on May 15, 2008
The best way is to use a scan tool to clear the codes, that will turn off the light, also disconnecting the battery over night may work, but no completely sure about that, it varies from year to year.
Posted on Sep 23, 2008
SOURCE: knock sensor code, p0330
The knock sensors either work or they don't. When they do not, the light comes on. All that a knock senor is is a piezo crystal that vibrates at the frequency that is comparable to engine "knock", and sends that yes/no signal to the ECU. There are 2 knock sensors, and both are bolted to each side of the engine interior walls, under each cylinder head. You have to remove both of the intake manifolds to access the knock sensors and their wiring.
Price to pay? My flat rate book suggests 3.7 hrs to change both. 3.7 hrs times your local labour rate, plus the price of the 2 sensors and/or wiring, and the price for the gaskets for the upper & lower manifolds. Depending on your location, you could quickly spend over $500.00.
Posted on Oct 07, 2008
SOURCE: nissan xterra knock sensor
It's the valley of the engine underneath the intake manifold. It's about an $800 job because the top of the engine has to come off. However, unless you have a supercharged xterra it shouldn't effect performance. Also, the knock sensor will not trip the check engine light, as it does not indicate a primary problem, so if your light is on you should have another code that should be fixed first.
Posted on Nov 24, 2008
If the car is pinging you will set a knock sensor code.'
This comes from bad gas and running lean., You really need this professionally inspected to rule out the basics. I have seen alot of nissans with the knock sensor code stored but the light is still off.
Fill up the tank with high octane chevron and some techron injector cleaner and clear the light. If it stays off for a couple days then go get it inspected. Even if the code is stored it will still pass as long as the light is still off and the monitors have run.
Posted on Jan 04, 2010
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sensor is commonly located on the engine block and essentially listens
for improper combustion when the engine is running. Engine knock, or
spark knock, is the noise created when the combustion process is erratic
or abnormal. Code p0330 indicates that the knock sensor has picked up a
frequency outside of the factory-set frequency range for the combustion
chamber. The computer uses information from the knock sensor to adjust
the engine ignition timing to keep combustion within the safe zone of
operation. In general, when the knock sensor code is set, the computer
will put the engine into limp mode to help prevent engine damage.
ECU= Engine Control Unit [The Cars Computer]
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P0325 OBD-II Trouble Code
Technical Description: Knock Sensor Circuit Malfunction
What does that mean?A knock sensor tells the engine computer when one or more of your engine's cylinders are "knocking", that is, exploding the air/fuel mixture in a way that delivers less power and can be damaging to the engine if prolonged. The computer uses this information to tune the engine so that it doesn't knock. If your knock sensor wasn't operating properly, so that it was always indicating a knock, the engine computer's response may have been to change the ignition timing on your engine. Knock sensors generally bolt into or thread into the engine block. This P0325 code may show up intermittently or the Service Engine light may be lit constantly. Other knock sensor related DTC codes include P0330.
Hope this helps.
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