Question about 1996 Toyota Camry

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P0325 knok sensor circuit malfunction How do I remove the KS to clean it? Or do I just replace it? I hear that they are expensive.

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You dont clean it, you replace it. Its quite a job, so I would have a pro do it. Its under the intake manifold. Also check the harness. You dont want to do all that work and have a bad harness.

Posted on Nov 12, 2010

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SUZUKI RENO WITH CODE p0325


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Knock sensor for 2007 Saturn outlook. I can't pass emissions test!


Check engine light on ? What code ? There are many different (DTC'S) - diagnostic trouble codes that can set for knock sensors ! There all don't mean that you replace the sensor .
DTC P0324: Knock Sensor (KS) Module Performance
DTC P0325: Knock Sensor (KS) Circuit Bank 1
DTC P0326: Knock Sensor (KS) Performance
DTC P0327: Knock Sensor (KS) Circuit Low Bank 1
DTC P0328: Knock Sensor (KS) Circuit High Bank 1
DTC P0330: Knock Sensor (KS) Circuit Bank 2
DTC P0332: Knock Sensor (KS) Circuit Low Bank 2
DTC P0333: Knock Sensor (KS) Circuit High Bank 2

The knock sensor (KS) system enables the control module to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The sensors are located below each cylinder head on the engine block. The KS produces an AC voltage signal that varies depending on the vibration level during engine operation. The control module adjusts the spark timing based on the amplitude and the frequency of the KS signal. The control module receives the KS signal through 2 isolated signal circuits. The control module learns a minimum KS noise level at idle and uses calibrated values for the rest of the RPM range. The control module should monitor a normal KS signal within the noise channel.
Knock Sensor Replacement - Bank 1
Remove the exhaust manifold lower heat shield. Refer to Exhaust Manifold Lower Heat Shield Replacement.
Disconnect the engine wiring harness electrical connector (1) from the bank 1 knock sensor (2).
Loosen the knock sensor bolt and remove the knock sensor.
Knock Sensor Replacement - Bank 2
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the engine oil filter. Refer to Engine Oil and Oil Filter Replacement .
Lower the vehicle.
Disconnect the engine wiring harness electrical connector (2) from the bank 2 knock sensor (3).
Loosen the knock sensor bolt and remove the knock sensor.

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What are all possible reasons for p0125?


Insufficient Coolant Temperature for Closed Loop Fuel Control
http://www.autocodes.com/p0125_lexus.html

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How i do, my 2000 nissan frontier air bag keep on blinking


code p0325 refers to knock sensor (KS) 1 bank 1 circuit malfunction===causes wiring--poor connection--KS needs replacing.

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1 Answer

I am workimg on my 2000 nissan quest. it cranks and turns over but will not start. it is throwing codes P0340 twice and P0325. we replaced the distributor cap and rotor and still nothing. probably goi


P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329 Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330 Knock Sensor 2 Circuit (Bank 2) -Circuit Malfunction
P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
P0333 Knock Sensor 2 Circuit High Input (Bank 2)
P0334 Knock Sensor 2 Circuit Input Intermittent (Bank 2)
P0335 Crankshaft Position Sensor -Circuit Malfunction
P0336 Crankshaft Position Sensor -Range/Performance
P0337 Crankshaft Position Sensor -Low Input
P0338 Crankshaft Position Sensor -High Input
P0339 Crankshaft Position Sensor -Intermittent
P0340 Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
sorry would a play with this to know for sure ,check the wiring plugs onto the sensors to make sure their not full of oil or corroded

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1 Answer

2001 nissan sentra 1.8L 4cyl. running codes P0105:P1605:P0171:P0325... engine idles fine when in park just not in gear, in gear it shakes pretty bad, also hesitates to accelerate when you press on gas...


code po105 refers to manifold absolute pressure(MAP)sensor/barometric pressure (BHARO) sensor -circuit malfunction==causes--wiring MAP sensor--BARO sensor--ECM
code p0171 refers to system to lean bank 1===causes intake/exhaust leak---AIR system MAF/MAP sensor fuel pressure /pump /injectors--HO2SW
code p0325 refers to knock sensor(KS) 1 bank 1-circuit malfunction====causes--wiring ---poor connections---KS
Check the exhaust flexible pipe at the manifold for cracks
have a fuel pressure test done on the fuel manifold to determine either pump/ filter or pressure regulator.
replace HO2S unit

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1 Answer

I have a 2004 Ford F150 4x4 Lariat with 99,949 miles on it. The truck started shuddering about 1 month ago after replacing the serpentine belt. A mechanic suggested that I change the spark plugs using OEM...


code p 0021 refers to camshaft position sensor (CMP), intake /left /front , bank 2--timing over advanced /system performance ====causes --valve timing---engine mechanical fault -- CMP actuator
change the can shaft actuator , not the position sensor
code p 0175 refers to system too rich---bank 2===causes --intake blocked ---EVAP canister purge valve ---fuel pressure ---EGR system---injector/s HO2S ( heated oxygen sensor in the exhaust manifold before the cat converter bank 2
code p 0345 refers to CMP sensor A bank 2--circuit malfunction===causes wiring ---CMP sensor ECM
check the wiring for breaks
code p 0325 refers to knock sensor ( KS) 1 bank 1---circuit malfunction==== causes wiring---poor connection to KS---KS
code p 0171 refers to system too lean bank 1===causes --intake /exhaust system leak---AIR system---MAF/VAF sensor ---fuel pressure /pump---injector/s ---HO2S in the bank 1 exhaust manifold before the cat converter
find an accredited service center with experience on the vehicle and have it fixed

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1 Answer

My 2004 Kia Sedona's engine light is constantly on. A mechanic attached a diagnostic tool and came up with the following codes: P0431 and P0325. Anything to be concerned about? Thanks


P0325 Knock sensor (KS) 1 , bank 1 - circuit malfunction
Possible causes: Wiring, poor connection, KS

knock sensor malfunction may reduce fuel mileage due to computer reducing ignition timing advance.

To repair: Check connector on knock sensor. If connection is good, replace sensor.


P0431 Warm up catalytic converter, bank 2 - efficiency below threshold
Possible causes: Catalytic converter, wiring, HO2S 2

increased HC emissions--no effect on engine performance unless caused by rich mixture.

To repair: Usually caused by worn out converter, but first verify fuel pressure regulator is not leaking fuel into it's vacuum port and that fuel pressure at the fuel rail is not above specification.


The car will run fine and there are no safety issues; however, before driving over anything that could ignite (for example, grass), make sure the catalytic converter is not glowing red.

If you have more questions, please let me know.

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Code P0325 Knock sensor 1 circuit malfunction (bank 1 or single sensor)


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CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 KNOCK SENSOR NO.1 CIRCUIT MALFUNCTION BANK NO.1 OR SINGLE SENSOR

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