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Failed smog check

Dtc p0330.

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  • dave2271 Apr 29, 2017

    Hi charlie yu, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
    If you are looking for help with this failure codehttps://www.obd-codes.com/p0330 provides the details.

    If you want help fixing the problem, i suggest providing more information about your vehicle model, year, engine size, tranny type, or searching for a Forum for your car online where there may be a resolution posted.

    Regards, Dave

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Posted on Jan 02, 2017

  • 42218 Answers

SOURCE: failed smog check dtc p0330.

code p 0330 refers to knock sensor(KS) 2 bank 2 --circuit malfunction===causes ---wiring--KS--- ECM
the knock sensor operates by sensing preignition detonation (uncontrolled spontaneous combustion) that is cause by timing and incorrect air/fuel ration
That is reported to the ECM so that adjustments can be made to bring the system back to preset parameters and stop the problem
besides being a knock sensor , it may be also a problem heated oxygen sensor (HO2S) in the exhaust manifold before the cat converter which reports to the ECM the combustion gas composition for adjustment to the air/fuel ratio

Posted on Apr 29, 2017

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1 Answer

Failed smog check dtc p0330.


code p 0330 refers to knock sensor(KS) 2 bank 2 --circuit malfunction===causes ---wiring--KS--- ECM
the knock sensor operates by sensing preignition detonation (uncontrolled spontaneous combustion) that is cause by timing and incorrect air/fuel ration
That is reported to the ECM so that adjustments can be made to bring the system back to preset parameters and stop the problem
besides being a knock sensor , it may be also a problem heated oxygen sensor (HO2S) in the exhaust manifold before the cat converter which reports to the ECM the combustion gas composition for adjustment to the air/fuel ratio

Apr 29, 2017 | Cars & Trucks

1 Answer

95 sl500 check engine light reset and comes back on after it sits over night. any idea?


What code is it throwing ? Some codes are what are called two trip codes ! You clear the codes an start an drive the vehicle ,no check engine light . Park the vehicle over night an bam next time you start an drive the vehicle the check engine light comes back on .

??There are two types of DTC's, 1 trip DTC's and 2

trip DTC's

??A 1 trip DTC is for a condition that requires

immediate attention such as a catalyst damaging

misfire.

??A 2 Trip DTC is one that a condition must be found

during 2 consecutive trips such as an EGR fault.

??Most Monitors do not set a DTC and light the MIL

when a vehicle fails a test for the first time during a

DRIVE CYCLE. If a test is failed on a second

consecutive DRIVE CYCLE the MIL will light and a

DTC is stored in the vehicles powertrain control
module (PCM).

Feb 07, 2016 | Cars & Trucks

1 Answer

P1334 code, what next?


No such DTC for that year and model

Feb 26, 2015 | 2000 Saab 9-5

2 Answers

My 2001 vw jetta wont pass smog, failed on emissions part..check engine light is on for multiple things do I need to fix all to get car to pass smog? Fuel injectors and O2 sensor.


ALWAYS PERFORM TESTS AND REPAIRS ON THE FIRST DTC AND RETEST AFTER EACH STEP.ONE SENSOR OR COMPONENT FAILURE CAN CAUSE OTHERS TO FAIL AS A RESULT.MEANING THE FIRST CODE COULD HAVE CAUSED THE OTHER CODES TO CYCLE.SO ALWAYS DIAG THE FIRST CODE STORED AND EACH ONE AFTER AS THEY WERE READ DURING THE SCAN

Oct 09, 2012 | 2002 Volkswagen Jetta TDI

1 Answer

Have a code come up p0332 on a cadilillac 2004


P0332 DTC Code - Knock Sensor 1 Circuit Low Input (Bank 2)
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 on Bank #2 is generating a low output voltage (perhaps under 0.5V), then it will trigger a P0332 DTC. This P0332 code may show up intermittently or the Service Engine light may be lit constantly. Other knock sensor related DTC codes include P0325, P0326, P0327, P0328, P0329, P0330, P0331, P0333, and P0334.

You may notice drivability problems including fluctation engine RPM, a loss of power, and perhaps some hesitation. There may also be other symptoms.

Potential causes for a P0332 DTC include (but are not limited to):
The knock sensor is faulty and needs to be replaced
There is a wiring open/short/fault in the knock sensor circuit
The PCM/ECM has failed

For aditional details, just Contact Us.

Hope this helps; just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Have a nice day and thanks for using FixYa.

Jose.

Oct 19, 2011 | 2004 Cadillac Escalade Ext

2 Answers

GMC 4.3L DTC P0330 flashing MIL


P0330 - Knock Sensor 2 Circuit Malfunction (Bank 2)
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 P0330 code may show up intermittently or the Service Engine light may be lit constantly. Other knock sensor related DTC codes include P0325.

Symptoms: You may notice drivability problems including a lack of power and perhaps some hesitation. There may also be other symptoms.

Causes: A code P0330 most likely means one or more of the following has happened:
The "B" knock sensor is faulty and needs to be replaced
There is a wiring short/fault in the knock sensor circuit

Possible Solutions:
Check the resistance of the knock sensor on bank 2 (compare it to factory specs)
Check for broken/frayed wires leading to the sensor
Replace the knock sensor on bank 2


Hope helps.

Aug 23, 2011 | GMC Safari Cars & Trucks

1 Answer

85 volvo dl fuel evaporative control functional (failed) @ smog check


replace the pvc valve and have the egr valve replace.make sure the vacuum hoses connect to egr valve and pvc replace.change air filter.all those things will cause high emission if not working properly.cause you to fail smog test.

May 31, 2009 | 1985 Volvo DL

1 Answer

Code P0330


P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)
Check the resistance of the knock sensor (compare it to factory specs)
The knock sensor is faulty and needs to be replaced.
Check for broken/frayed wires leading to the sensor.
There is a wiring short/fault in the knock sensor circuit
Check timing

Nov 20, 2008 | 2001 Toyota Sienna

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