Question about 1996 Chevrolet K1500

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Check enigne light but no trouble codes

96 chevy 1/2 ton 4WD with 4.3L. My Oxygen sensors have been a porblem for a long time. I installed a new high flow cat and replaced the O2 sensor behind the the cat. I cleaned the one in front of the cat and cleaned the EGR valve out though I don't think it needed it. With all that my engine light is still on but my OBD II scanner still is reporting no trouble codes and only three of the engine systems test have run properly. In addition, the truck might start rough some times and acts as is it is not getting fuel if I press the throttle. The problem will go a way if I let it run for a minute or so. I havn't notice the bad start up since the new cat and o2 sensors but my fuel milage still sucks. There is a lot going on right now but where can I go from here.

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  • d_till Dec 22, 2008

    Why will the aftermarket O2 sensors not work?

  • bladerider1 May 11, 2010

    If you replaced the O2 sensors with aftermarket they will not work you need to have the factory sensors installed. Had same problem on a different chevy.

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When I had this problem they told me they were not made as well as the factory ones installed. To be honest understand the reason either.

Posted on Dec 22, 2008

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Codes P2270& P2272 after oil change check engine light on drove under 100 miles both O2 sensors bad .Could shop have caused this somehow??? Maybe banging them or something ?


make sure they are plugged in tight Definition of Diagnostic Trouble Code P2270 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2Note: This definition of P2270 is applied to all manufacturers

P2270 - O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Comments ' Add Yours
Possible causes
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Exhaust gas leaks Help with this
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S12 sensor has reported a lean condition for an extended period during an intrusive test
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2270 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.

Definition of Diagnostic Trouble Code P2272 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2Note: This definition of P2272 is applied to all manufacturers

P2272 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2
' Add Comment
Possible causes
- Faulty Rear Heated Oxygen Sensor Bank 2
- Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Exhaust gas leaks
What does this mean?
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S22 sensor has reported a lean condition for an extended period during an intrusive test
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2272 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.
P2272 Information for specific makes
P2272 BMW
P2272 DODGE
P2272 FORD

Jul 30, 2015 | Cars & Trucks

1 Answer

I am getting the following codes on my 2002 Nissan Altima v6 3.5 liter P1430, P1420, P1805, P1152, P1102, P1011, P1021 & P1335 I'm going crazy here. Please help!


Definition of Diagnostic Trouble Code P1430 Ford: Electric Air Pump Secondary Lincoln: Electric Air Pump Secondary Mazda: Electric Air Pump Secondary Mercury: Electric Air Pump Secondary Toyota: Intake Constrictor CTRL Circuit Open or Short

Definition of Diagnostic Trouble Code P1420 Audi: Second Air Injection Valve Circ Electrical Malfunction BMW: Secondary Air Valve Control Circuit Electrical Buick: Intake Air Low Pressure Switch Circuit Low Voltage Cadillac: Intake Air Low Pressure Switch Circuit Low Voltage Chevrolet: Intake Air Low Pressure Switch Circuit Low Voltage Chrysler: Register Resonant Charging 1 (RRC1) Dodge: Register Resonant Charging 1 (RRC1) Ford: Catalyst Temperature Sensor GMC: Intake Air Low Pressure Switch Circuit Low Voltage Honda: Nox Adsorptive Catalyst System Efficiency Below Threshold Catalytic converter Jeep: Register Resonant Charging 1 (RRC1) Lincoln: Catalyst Temperature Sensor Mazda: Catalyst system efficiency below threshold (bank 1) Mercedes: AIR Pump Switch over Valve Mercury: Catalyst Temperature Sensor Oldsmobile: Intake Air Low Pressure Switch Circuit Low Voltage Pontiac: Intake Air Low Pressure Switch Circuit Low Voltage Saturn: Intake Air Low Pressure Switch Circuit Low Voltage Subaru: EVAP Purge Control Solenoid Circuit High Input Toyota: SCV Control Circuit Malfunction Volkswagen: Second Air Injection Valve Circ Electrical Malfunction

Definition of Diagnostic Trouble Code P1805 Ford: Four wheel drive high indicator circuit failure Lincoln: Four wheel drive high indicator circuit failure Mazda: (4WD) High Indicator Open Circuit Mercury: Four wheel drive high indicator circuit failure Toyota: SB Solenoid Circuit Malfunction

Definition of Diagnostic Trouble Code P1152 Audi: Bank1, Long Term Fuel Trim, Range 2 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Low Voltage (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Jaguar: Lack of H02S-21 switch, sensor indicates rich Land Rover: Oxygen sensor response time bank 2.Short circuit to ground Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Subaru: Oxygen sensor range /performance problem (Low) Volkswagen: Bank1, Long Term Fuel Trim, Range 2 Leanness Lower Limit Exceeded Volvo: Oxygen Sensor Front, Bank 2

Definition of Diagnostic Trouble Code P1102 Acura: Mass Airflow (MAF) Sensor Lower Than Expected Comprehensive Audi: Oxygen Sensor Heating Circuit,Bank1-Sensor1 Short to B+ Chrysler: HEV Stop Request Performance Dodge: HEV Stop Request Performance Hyundai: MAP Sensor Circuit Low Input Jeep: HEV Stop Request Performance Kia: Heated Oxygen Sensor Bank 1 Sensor 1 Heater Circuit High Input Land Rover: Throttle to air flow plausibility not active.Last occurrence - minimum signal Mazda: Mass Air Flow Sensor In Range But Lower Than Expected Mitsubishi: Traction Control Ventilation Solenoid Circuit Porsche: Heated Oxygen Sensor 1 Ahead Of TWC Heater Short To B+ Saab: Front Heated Oxygen Sensor Bank 1, Control Module Input, Current in Pre-Heating Circuit Too High Subaru: Pressure Sources Switching Solenoid Valve Circuit Malfunction Volkswagen: Oxygen Sensor Heating Circuit,Bank1-Sensor1 Short to B+ Volvo: Power Stage Group B

Definition of Diagnostic Trouble Code P1011 Saab: Injector Cylinder 1 Shorting To Ground Toyota: OCV for VVTL Open Malfunction (Bank 1)

Definition of Diagnostic Trouble Code P1021 Honda: Valve Pause System Stuck On Comprehensive Mitsubishi: OCV OPN. Bank 1 Saab: Injector Cylinder 2 Shorting To Ground Toyota: OCV for VVTL Open Malfunction (Bank 2)

Definition of Diagnostic Trouble Code P1335 Audi: Engine Torque Monitoring 2 Control Limit Exceeded Buick: CKP Circuit Cadillac: CKP Circuit Chevrolet: CKP Circuit Ford: (EGR) Position Sensor Minimum Stop Performance GMC: CKP Circuit Infiniti: CKP Sensor (Ref) Jaguar: CKPS Circuit Malfunction Land Rover: Exhaust gas recirculation position sensor minimum stop performance. Lexus: Igniter Circuit Malfunction Bank 2 (During Engine Running) Lincoln: (EGR) Position Sensor Minimum Stop Performance Mazda: (EGR) Position Sensor Minimum Stop Performance Mercedes: CKP Sensor Circuit Malfunction, Bank 2 Mercury: (EGR) Position Sensor Minimum Stop Performance Oldsmobile: CKP Circuit Pontiac: CKP Circuit Saturn: CKP Circuit Toyota: No CKP Sensor Signal Engine Running Volkswagen: Engine Torque Monitoring 2 Control Limit Exceeded http://www.obd-codes.com/trouble_codes/nissan

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1 Answer

Keeps throwing up trouble codes p1506,p1151,p0302,p0171


Definition of Diagnostic Trouble Code P1506 Audi: Closed Throttle Position Switch Does Not Open/Short to Ground BMW: Idle-Speed Control Valve Opening Solenoid Control Circuit Signal High Ford: Idle Air Control Overspeed Error (see P0507) Jaguar: Idle Air Control System RPM Lower Than Expected - B Bank Kia: IAC Valve Opening Coil Voltage High Lincoln: Idle Air Control Overspeed Error (see P0507) Mazda: Idle Air Control Overspeed Error Mercury: Idle Air Control Overspeed Error (see P0507) Porsche: Throttle Jacking Unit Lower Mechanical Stop, Signal Implausible Volkswagen: Closed Throttle Position Switch Does Not Open/Short to Ground Volvo: IAC Valve Opening Signal
------------------------
Definition of Diagnostic Trouble Code P1151 Audi: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Jaguar: Lack of H02S-21 switch, sensor indicates lean Land Rover: Lambda control limit bank 2.Implausible signal/condition Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Subaru: HO2S-12 Heater Circuit High Input Toyota: Coolant Path Clog Up for Coolant Heat Storage System Volkswagen: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded
------------
Definition of Diagnostic Trouble Code P0302 Category: Powertrain Definition: Cylinder 2 Misfire DetectedNote: This definition of P0302 is applied to all manufacturers
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Definition of Diagnostic Trouble Code P0171 Category: Powertrain Definition: System Too Lean Bank 1Note: This definition of P0171 is applied to all manufacturers

Jun 17, 2015 | Cars & Trucks

1 Answer

What is p0141b and how to fix it?


Technical Description O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) What does that mean? This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1). Symptoms You will likely notice poor fuel economy the illumination of the Check Engine Light. Causes A code P0141 may mean that one or more of the following has happened: open or short to ground in the wiring harness O2 heater circuit wiring high resistance O2 heater element resistance is high Internal short or open in the heater element Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter. Possible Solutions Replace oxygen sensor (cannot repair open or short that occurs internally to sensor) Repair short or open or high resistance in wiring harness or harness connectors



Try wiggling the wire to the Oxygen sensor. Probably just corroded or loose! Worst case, $25 for a new sensor.

Jul 22, 2014 | 2004 Pontiac Grand Am

1 Answer

Obd1 trouble codes


#53 oxygen sensor heating circuit (get a new sensor)
#66 air assisted injector control circuit or circuit low
#32 oxygen heater control circuit high ( new sensor again)
theres a good chance you've several o2 sensors and I'd have to some reading on 66. I'm a chevy guy :)

Jun 05, 2014 | 1995 Lincoln Town Car

1 Answer

How do I troubleshoot my 89 s10 can I do the code thing with the paperclip what are the steps


i have a chevy s-10 1998 with a 4 cyl engine...i have replaced the ecm and both oxygen sensors along with the egr tube and thermostat and the check engine light keeps coming on reading the code p 1133 insufficient switching bank 1 sensor 1 my mechanic and i are both frustrated any ideas

Mar 17, 2012 | 1990 Chevrolet S 10 4WD

1 Answer

My problem with FixYa is the idiotic returns on search. For insance, My search is 1997 Ford Thunderbird engine code 141. Fixya returns a reply with a ton of non-related, non-authorative replies. How...


DTC P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1).

You will likely notice poor fuel economy the illumination of the Check Engine Light.

Causes: A code P0141 may mean that one or more of the following has happened:
open or short to ground in the wiring harness
O2 heater circuit wiring high resistance
O2 heater element resistance is high
Internal short or open in the heater element

Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

Possible Solutions:
Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
Repair short or open or high resistance in wiring harness or harness connectors

Here is the daignostic procedure for troubleshooting DTC P0141 (click over each image for zoom)...


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Hope this helps to solve it.

Sep 27, 2011 | 1997 Ford Thunderbird LX

1 Answer

I have a 2002 Chevy S-10 Crew cab 4wd LS. I was


p0420 is Catalyst System Efficiency Below Threshold (Bank 1) o2 sensors reading are used to check the cat if the cat is plugged you will lose power o2 sensor send a voltage signal to the computer 0 to 1 volts The o2 upstream of the cat should switch back and forth from 0 to 1 volts, average .450v if voltage stays high engine is running rich (low oxygen) if voltage stays low engine is lean (lots of oxygen) cats have a 8-year 80000-mile warranty

Jul 11, 2010 | 2002 Chevrolet S-10

1 Answer

Po138 code on 96 chevy tahoe 5.7l where do i start testing


P0138 is a code for an unexpected high voltage in the post cat o2 sensor on the left side (bank 1 sensor 2). It often is a result of an internal short between the oxygen sensor heater and the actual oxygen sensor. I would clear the core and if it returns replace the sensor.

Oct 06, 2009 | 1996 Chevrolet Tahoe

2 Answers

Trouble code 00P38 on a 2004 dodge 2500


Bank 1 sensor 2. Oxygen sensor heater control circuit high. You can try disconnecting at connector to sensor, clean connection good, disconnect battery for a minute or so & retry. If it comes back, I'd look at replacing heater solenoid.

Jun 12, 2009 | 2004 Dodge Ram

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