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P0146 code this code came up

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HI I HAVE 2004 F 150 4.6 AUTOMATIC 2WD AND I HAVE THIS CODES P0146 P0155 AND P0962?


146 is the oxygen sensor AFTER the catalytic converter. Check the exhaust system for leaks and check the wiring to the sensor, don't just replace the sensor. 155 is the heater circuit for the oxygen sensor, Check the wires and fuses the last code is for the transmission. did you run over something and damage the undercarrige

Feb 24, 2017 | Ford F-150 Cars & Trucks

1 Answer

I put a new oxygen sensor on my 1999 chevy 4x4 blazer and it still has code p0146


This is Oxygen sensor circuit has no activity Bank 1 sensor 3 That means the computer sees no change from bias voltage (451mv) to a plus voltage (451mv-890mv) and a drop voltage (359mv-100mv) best describe as a open circuit must test at computer pin to determine open in wiring.

Nov 10, 2013 | 1999 Chevrolet Blazer

1 Answer

Im getting code P2253 on my 04 Saturn vue with 3.5l V6. Anyway to tell which O2 sensor it is? Thxs Bill


P0804 is the highest OBD-II trouble code.

Here's your Oxygen sensor codes.

P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

Note: "Bank 1" is the side of the engine with cylinder 1. "Bank 2" is the other side.

Jul 03, 2011 | 2004 Saturn VUE

1 Answer

I JUST WANT THE CODES FOR CHEVY TRAILBLAZER 2004...


  • Feb 7/11 - P0405
  • Jan 11/11 - P0336 - P0326
  • Dec 28/10 - P0217 - P0218 - P0163 - P0230 - P0231 - P0232
  • Dec 9/10 - Trouble Codes: P0170 - P0173 - P0162 - P0154 - P0142
  • Dec 6/10 - More DTC articles: P0157 - P0158 - P0160 - P0200
  • Nov 30/10 - DTC articles posted: P0505 - P0156
  • Nov 18/10 - More new articles: P0143 - P0144 - P0146 - P0147 - P0152
  • Nov 12/10 - P0120 - Throttle Position Sensor/Switch A Circuit Malfunction
  • Nov 11/10 - ECT Circuit Codes: P0116 - P0117
  • Nov 10/10 - P0111 - IAT Circuit Range/Performance Problem
  • Nov 7/10 - P0110 - Intake Air Temperature Circuit Malfunction
  • Nov 6/10 - P0108 - Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Oct 21/10 - P0216 Injection Timing Control Circuit Malfunction
  • Sept 11/10 - Knock Sensor DTCs: P0327 P0332
  • Mar 15/10 - P0607 Control Module Performance Code
  • Mar 4/10 - P0606 PCM Processor Fault DTC
  • Feb 10/10 - New ECT Sensor article
  • Feb 9/10 - P0012 & P0022 - Camshaft Position - Timing Over-Retarded
  • Feb 2/10 - P0115 - Engine Coolantmag-glass_10x10.gif Temperature Circuit Malfunction DTC
  • Jan 19/10 - P0105 - MAP/Barometric Pressure Circuit Malfunction
  • Feb 10, 2011 | 2004 Chevrolet TrailBlazer

    1 Answer

    I have a 1997 Chevy Blazer with the 4.3 engine. The Service Engine light keeps coming on. I scanned the codes and replaced the O2 sensor just before the catalytic converter. The light is still coming on...


    P0146 pd means pending code
    Pending codes and DTCs? Posted on November 12, 2010 by fcrmaster
    When reading codes from your vehicle the fault code reader may show them as pending codes or normal Diagnostic Trouble Codes (DTC).
    Pending codes (also known as continuous monitor codes) will be registered when an intermittent fault occurs. If that fault does not happen again after x number of start/stop cycles, the ECU will erase the code from memory. If the fault is persistent it becomes a DTC.
    If you have read pending codes it is advisable to check the codes again after a week or so. If there is no apparent problem with the vehicle it is safe to erase the codes too and check back. But always make a note of any fault codes with the date and mileage of a vehicle.
    If the codes read include a DTC then you need to investigate further. This you can either do yourself or advise your garage. If, again, you don't see an apparent problem (depending n the severity of the code) with the vehicle you can note the codes down and erase them. Then check again after a week or a few days depending on how often the vehicle gets used. If a repair has been made (previous owner) the DTC may just not have been reset after the repair.
    The other numbers behind the code 01/06 , 02/06, 03/06 , 05/06 ,04/06 These don't mean anything . cheap code reader .
    DTC P0140 HO2S Circuit Insufficient Activity Sensor 2
    DTC P0146 HO2S Circuit Insufficient Activity Bank 1 Sensor 3
    DTC P0171 Fuel Trim System Lean Bank 1
    DTC P0174 Fuel Trim System Lean Bank 2
    Sorry but this is something you should take to a qualified repair shop that has a diagnostic tool that can view sensor scan data.
    Causes of lean condition trouble codes P0171 P0174 GM 5 3L

    Jul 23, 2017 | 1999 Chevrolet Camaro

    3 Answers

    Reccieved P0141, P0147, P0340 as emission diagnostic trouble codes. What do these mean?


    P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)

    P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

    P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

    P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

    P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

    P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

    P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)

    P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

    Sep 20, 2010 | 1997 GMC Sierra

    1 Answer

    Meaning of po146 code for 1996 chevy blazer check engine light


    Code -P0146 - o2 circuit no activity detected,
    Bank 1 senor 3
    Bank 1 is going to be where number 1 cylinder is at,
    It's going to be the very last o2 sensor on the exhaust pipe, check make sure it's connected, if it is more then likely bad sensor.

    Jun 23, 2010 | 1997 Chevrolet Blazer

    2 Answers

    I have a 99 cadillac deville and had it put on the machine to get it tested..the codes came back as P0147, P1377, P1323, and P0146. can someone please tell me what these codes mean.


    P0146:
    O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
    The PCM provides a 0.45 volt reference to the oxygen sensor on CKT 1668. When the Oxygen Sensor reaches operating temperature it will generate a counter voltage that will vary based on the amount of oxygen in the exhaust. The post-converter heated oxygen sensor is located in the exhaust after the catalytic converter. A lean exhaust will generate a low voltage and cause the 0.45 reference to move lower. A rich exhaust will generate a high voltage and cause the 0.45 reference to move higher. If the oxygen sensor cannot respond under the test conditions and generate a voltage greater than 0.609 volt or less than 0.307 volt, it will set a DTC P0146. Possible causes of DTC P0146 are:
    • Open in CKT 1668 or 1669.
    • Short to voltage on CKT 1668 or 1669.
    • Oxygen sensor that malfunctions.
    • An ineffective oxygen sensor heater.
    • A poor HO2S ground.

    P0147 :O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
    This diagnostic test is used to determine if the heating element in the post-converter oxygen sensor is operating properly. An oxygen sensor acts as a battery because it creates its own voltage once it reaches operating temperature. This voltage is produced when the oxygen content in the exhaust stream is different than that in the atmosphere. The heating element is energized through CKT 139 when the ignition is ON and allows the oxygen sensor to reach operating temperature quickly. This in turn allows the PCM to enter Closed Loop fuel control quicker. When cold the voltage that the PCM measures on the HO2S HI and LOW inputs is called bias voltage. If it takes too long for the HO2S to vary above or below the bias voltage within a specific time since key ON DTC P0147 will set

    P1323:IC 24X Referance Circut Low Frequency
    The Ignition Control Module creates a 4X signal and a 24X signal that is used by the PCM for ignition and fuel control. In this diagnostic test, the PCM checks for 4X reference pulses being received without 24X reference pulses. When the engine is running and the PCM is receiving 4X reference pulses without 24X reference pulses and the 24X reference signal line is low for 4 seconds, DTC P1323 is set.

    P01377:IC Cam Pulse To 4X Referance
    This diagnostic test checks to see if there are eight 4X reference pulses between CAM signals. Do not attempt diagnosis or repair unless the customer is experiencing driveability problems associated with this DTC.

    Hope this helps!

    Mar 08, 2010 | 1999 Cadillac DeVille

    1 Answer

    OBD code P0146 O2 sensor circuit no activity. Bank 1 Sensor 3 what should I check first.


    ok first off if there is no connectivity you will need to confirm this by testing the leads to the O2 sensor itself, try to back probe them with a T pin so that you don't disturb the plug too much so that you can rule out a fuilty plug connection, make sure you have voltage, I would assume this is a 4 wire O2 sensor which means that its a heated sensor meaning it has a heater in it to jump start the collection of data @ the sensor.if you have voltage check the plug it self it there is voltage on the O2 sensor side on the plug then you have a bad O2 sensor

    Feb 26, 2010 | 1999 Chevrolet Camaro

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