P1130 MERCURY – Upstream Heated Oxygen Sensor Switch Lack, Adaptive Fuel Limit, Bank 1

P1130 MERCURY Possible Causes

  • Faulty upstream oxygen sensor, bank 1
  • High or low fuel pressure
  • Dirty/faulty MAF sensor
  • Engine vacuum leak
  • Leaking fuel injector or fuel pressure regulator
  • Faulty powertrain control module (PCM)

How to Fix P1130 MERCURY Code?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The heated exhaust gas oxygen sensor (HEGO) is monitored for switching. The test fails when the HO2S fails to switch due to a circuit or fuel at or exceeding a calibrated limit.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1130 MERCURY Meaning

The Heated Oxygen Sensor (HO2S) monitor is an onboard strategy designed to monitor HO2S sensors for any malfunction or deterioration that could affect emissions. Under specific conditions, the fuel control or upstream HO2S sensors are checked for proper output voltage and response rate (the time it takes to switch from lean to rich or rich to lean). Downstream HO2S sensors used for Catalyst Monitor are also monitored for proper output voltage. Input is required from engine coolant temperature (ECT) or cylinder head temperature (CHT), intake air temperature (IAT), mass air flow (MAF), throttle position (TP), and crankshaft position (CKP) to activate the HO2S monitor. The fuel system monitor and misfire detection monitor must also have completed successfully before the HO2S monitor is activated.
• The HO2S detects the oxygen content in the exhaust stream and delivers a voltage between zero and 1.0 volt. At stoichiometric lean (air/fuel ratio of about 14.7:1 for gasoline engines), the HO2S will generate a voltage between zero and 0.45 volt. At stoichiometric rich, the HO2S will generate a voltage between 0.45 and 1.0 volt.
• The HO2S monitor evaluates both the upstream (fuel control) and downstream (catalyst monitor) HO2S for proper operation.
• Once the HO2S monitor is activated, the upstream HO2S signal voltage amplitude and response frequency are checked. Excessive voltage is determined by comparing the HO2S signal voltage to a maximum threshold voltage that can be calibrated.
• A fixed frequency closed-loop fuel control routine is executed, and the upstream HO2S voltage amplitude and output response frequency are observed. A sample of the upstream HO2S signal is evaluated to determine if the sensor is capable of switching or has a slow response rate.
• An HO2S heater circuit fault is determined by turning the heater on and off and looking for a corresponding change in the OSM and
measuring the current through the heater circuit.
• The MIL is activated after a fault is detected on two consecutive OBD II drive cycles.

P1130 NISSAN – Swirl Control Valve Control Solenoid

P1130 NISSAN Possible Causes

  • Faulty swirl control valve control solenoid valve
  • Swirl control valve control solenoid valve circuit open or shorted
  • Swirl control valve circuit open or shorted
  • Faulty swirl control valve
  • Faulty swirl control valve actuator

How to Fix NISSAN Code P1130?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

The P1130 code is detected when an incorrect voltage signal is sent to the engine control module (ECM) via the swirl control valve control solenoid valve.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1130 NISSAN Meaning

This system has a swirl control valve in the intake passage of each cylinder.
At idle and during low engine speed operation, the swirl control valve closes. This increases the air speed in the intake passage, promoting fuel vaporization and creating a swirl in the combustion chamber.
Due to this operation, this system tends to increase the combustion speed of the gas mixture, improve fuel consumption, and increase stability under operating conditions.
Additionally, except at idle and during low engine speed operation, this system opens the swirl control valve. In this condition, the system tends to increase power by improving intake efficiency through reduced intake flow resistance.
The solenoid valve controls the closed/open condition of the swirl control valve. This solenoid valve is operated by the engine control module (ECM).
The swirl control valve control solenoid valve responds to signals from the ECM. When the ECM sends an ON signal (ground), the solenoid valve is bypassed to apply intake manifold vacuum to the swirl control valve actuator. This operation closes the swirl control valve. When the ECM sends an OFF signal, the vacuum signal is cut off and the swirl control valve opens.

P1130 SCION – Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction, Bank 1 Sensor 1

P1130 SCION Possible Causes

  • Faulty air/fuel ratio (A/F) sensor, bank 1 sensor 1
  • Air/fuel ratio (A/F) sensor, bank 1 sensor 1 harness is open or shorted
  • Air/fuel ratio (A/F) sensor, bank 1 sensor 1 circuit, poor electrical connection
  • Fuel pressure
  • Fuel injector
  • Intake air leaks

How to Fix Code P1130 SCION?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

Code 1130 is set when the A/F sensor output voltage change value is not what the engine control module (ECM) expects.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1130 SCION Meaning

The air/fuel ratio (A/F) sensor varies its output voltage proportionally to the air/fuel ratio. Based on the output voltage, the engine control module (ECM) determines whether the air/fuel ratio is RICH or LEAN and adjusts the stoichiometric air/fuel ratio. The ECM also checks the fuel injection volume compensation value to verify whether the A/F sensor is deteriorating or not. The deterioration of the A/F sensor response is determined by the ratio between the A/F sensor output voltage change and the fuel compensation change.

P1130 TOYOTA – Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction, Bank 1 Sensor 1

P1130 TOYOTA Possible Causes

  • Faulty air/fuel ratio (A/F) sensor, bank 1 sensor 1
  • Air-fuel ratio (A/F) sensor, bank 1 sensor 1 harness is open or shorted
  • Air-fuel ratio (A/F) sensor, bank 1 sensor 1 circuit, poor electrical connection
  • Fuel pressure
  • Fuel injector
  • Intake air leaks

How to Fix Code P1130 TOYOTA?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

Code 1130 is set when the A/F sensor output voltage change value is not what the engine control module (ECM) expects.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1130 TOYOTA Meaning

The air-fuel ratio (A/F) sensor varies its output voltage proportionally to the air-fuel ratio. Based on the output voltage, the engine control module (ECM) determines whether the air-fuel ratio is RICH or LEAN and adjusts the stoichiometric air-fuel ratio. The ECM also checks the fuel injection volume compensation value to verify whether the A/F sensor is deteriorating or not. The deterioration of the A/F sensor response is determined by the ratio between the A/F sensor output voltage change and the fuel compensation change.

P1130 TOYOTA RAV4 2.0 – Air/Fuel Ratio Sensor Circuit Range/Performance, Bank 1 Sensor 1

P1130 TOYOTA RAV4 2.0 Possible Causes

  • Faulty air/fuel ratio (A/F) sensor, bank 1 sensor 1
  • Air/fuel ratio (A/F) sensor, bank 1 sensor 1 harness is open or shorted
  • Air/fuel ratio (A/F) sensor, bank 1 sensor 1 circuit, poor electrical connection
  • Fuel pressure
  • Fuel injector
  • Intake air leaks

How to Fix Code P1130 TOYOTA RAV4 2.0?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

Code 1130 is set when the A/F sensor output voltage change value is not what the engine control module (ECM) expects.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1130 TOYOTA RAV4 2.0 Meaning

The air/fuel ratio (A/F) sensor varies its output voltage proportionally to the air/fuel ratio. Based on the output voltage, the engine control module (ECM) determines whether the air/fuel ratio is RICH or LEAN and adjusts the stoichiometric air/fuel ratio. The ECM also checks the fuel injection volume compensation value to verify whether the A/F sensor is deteriorating or not. The deterioration of the A/F sensor response is determined by the ratio between the A/F sensor output voltage change and the fuel compensation change.

P1130 VOLKSWAGEN – Long Term Fuel Trim System B2 Too Lean

P1130 VOLKSWAGEN Possible Causes

  • Faulty mass air flow (MAF) sensor
  • High fuel pressure
  • Engine vacuum leak
  • Faulty Bank 1 HO2S

How to Fix Volkswagen P1130 Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1130 VOLKSWAGEN Meaning

Long term fuel trim system B2 too lean is the generic description for Volkswagen P1130 code, but the manufacturer may have a different description for your model and vehicle year. Currently, we have no further information about Volkswagen P1130 OBDII code.

P1131 – Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Bank 1 Lean

P1131 Possible Causes

  • Faulty upstream oxygen sensor, bank 1
  • High or low fuel pressure
  • Dirty/faulty MAF sensor
  • Engine vacuum leak
  • Leaking fuel injector or fuel pressure regulator
  • Faulty powertrain control module (PCM)

How to Fix Code P1131?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Technical Notes

The code means the powertrain control module (PCM) has detected a lean system, meaning there is not enough fuel or an excessive amount of air in the system. Start by checking for vacuum leaks.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1131 Meaning

The Heated Oxygen Sensor (HO2S) monitor is an integrated strategy designed to monitor the HO2S sensors for malfunction or deterioration that could affect emissions. Under specific conditions, the upstream fuel control or HO2S sensors are checked for proper output voltage and response rate (the time it takes to switch from lean to rich or rich to lean). The downstream HO2S sensors used for Catalyst Monitor are also monitored for proper output voltage. An input is required from engine coolant temperature (ECT) or cylinder head temperature (CHT), intake air temperature (IAT), mass air flow (MAF), throttle position (TP), and crankshaft position (CKP) to activate the HO2S monitor. The fuel system monitor and misfire detection monitor must also have completed successfully before the HO2S monitor is activated.
• The HO2S sensor detects the oxygen content in the exhaust stream and delivers a voltage between zero and 1.0 volt. At stoichiometric lean (air/fuel ratio of about 14.7:1 for gasoline engines), the HO2S will generate a voltage between zero and 0.45 volt. At stoichiometric rich, the HO2S will generate a voltage between 0.45 and 1.0 volt.
• The HO2S monitor evaluates both the upstream (fuel control) and downstream (catalyst monitor) HO2S for proper operation.
• Once the HO2S monitor is activated, the amplitude of the upstream HO2S signal voltage and the response frequency are checked. Excessive voltage is determined by comparing the HO2S signal voltage to a maximum threshold voltage that can be calibrated.
• A fixed frequency closed-loop fuel control routine is executed and the upstream HO2S voltage amplitude and output response frequency are observed. A sample of the upstream HO2S signal is evaluated to determine if the sensor is capable of switching or has a slow response rate.
• An HO2S heater circuit fault is determined by turning the heater on and off and looking for a corresponding change in the OSM and
measuring the current through the heater circuit.
• The MIL is activated after a fault is detected on two consecutive OBD II drive cycles.

P1131 FORD F150 – Lack of Heated Oxygen Sensor Switch Sensor Upstream Indicates Lean Bank 1

P1131 1997 FORD F150 Possible Causes

  • Faulty upstream oxygen sensor, bank 1
  • High or low fuel pressure
  • Dirty/faulty MAF sensor
  • Engine vacuum leak
  • Leaking fuel injector or fuel pressure regulator
  • Faulty powertrain control module (PCM)

How to Fix Code P1131 1997 FORD F150?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

When is the Code Detected?

When an HO2S sensor indicates lean at the end of a test, the system attempts to correct an over-lean condition. The code is set when the fuel control system no longer detects switching for a calibrated duration.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P1131 1997 FORD F150 Meaning

The Heated Oxygen Sensor (HO2S) monitor is an integrated strategy designed to monitor HO2S sensors for malfunction or deterioration that could affect emissions. Under specific conditions, the fuel control or upstream HO2S sensors are checked for proper output voltage and response rate (the time it takes to switch from lean to rich or rich to lean). Downstream HO2S sensors used for Catalyst Monitor are also monitored for proper output voltage. An input is required from engine coolant temperature (ECT) or cylinder head temperature (CHT), intake air temperature (IAT), mass air flow (MAF), throttle position (TP), and crankshaft position (CKP) to activate the HO2S monitor. The fuel system monitor and misfire detection monitor must also have completed successfully before the HO2S monitor is activated.
• The HO2S sensor detects the oxygen content in the exhaust stream and delivers a voltage between zero and 1.0 volt. At stoichiometric lean (air/fuel ratio of about 14.7:1 for gasoline engines), the HO2S will generate a voltage between zero and 0.45 volt. At stoichiometric rich, the HO2S will generate a voltage between 0.45 and 1.0 volt.
• The HO2S monitor evaluates both the upstream (fuel control) and downstream (catalyst monitor) HO2S for proper operation.
• Once the HO2S monitor is activated, the amplitude of the upstream HO2S signal voltage and the response frequency are checked. Excessive voltage is determined by comparing the HO2S signal voltage to a maximum threshold voltage that can be calibrated.
• A fixed-frequency closed-loop fuel control routine is executed, and the upstream HO2S voltage amplitude and output response frequency are observed. A sample of the upstream HO2S signal is evaluated to determine if the sensor is capable of switching or has a slow response rate.
• An HO2S heater circuit fault is determined by turning the heater on and off and looking for a corresponding change in the OSM and
measuring the current flowing through the heater circuit.
• The MIL is activated after a fault is detected on two consecutive OBD II drive cycles.

P1131 AUDI – HO2S21 Internal Resistance Too High

P1131 AUDI Possible Causes

  • Faulty oxygen sensor heater, bank 2 sensor 1 (HO2S21)
  • Oxygen sensor heater, bank 2 sensor 1 wiring harness open or short circuit
  • Oxygen sensor heater, bank 2 sensor 1 circuit, poor electrical connection

How to Fix P1131 AUDI Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or soon-to-be-on Engine Warning Light)

P1131 AUDI Meaning

HO2S21 Heater Resistance Too High is the generic description for Audi P1131 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Audi P1131 OBDII code.

P1131 BMW – Aging Oxygen Sensor Behind Catalytic Converter 2

P1131 BMW Possible Causes

  • Faulty oxygen sensor
  • Oxygen sensor harness is open or shorted
  • Poor electrical connection in oxygen sensor circuit
 

How to Fix BMW P1131 Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

 
 

Possible Symptoms

  • Check Engine Light on (or soon-to-be-serviced engine warning light)
 

P1131 BMW Meaning

The oxygen sensor behind catalytic converter 2 Aging is the generic description for Bmw P1131 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the P1131 Bmw OBDII code.