P1133 BMW – Insufficient HO2S Switching Sensor 1

P1133 BMW Possible Causes

What does it mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Vacuum leak
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 harness is open or shorted
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 circuit, poor electrical connection

How to Fix BMW P1133 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 Service Engine Soon Warning Light)

P1133 BMW Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation begins. The PCM determines if the front HO2S is operating correctly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 BUICK – HO2S Insufficient Switching, Bank 1 Sensor 1

P1133 BUICK Possible Causes

What does this mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Vacuum leak
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 harness is open or shorted
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 circuit, poor electrical connection

How to Fix Code P1133 BUICK?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set code P1133.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)

P1133 BUICK Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation begins. The PCM determines if the front HO2S is operating properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 CADILLAC – HO2S Insufficient Switching, Bank 1 Sensor 1

P1133 CADILLAC Possible Causes

What does this mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Vacuum leak
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 harness is open or shorted
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 circuit, poor electrical connection

How to Fix Code P1133 CADILLAC?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set the P1133 code.

Possible Symptoms

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

P1133 CADILLAC Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after the start of closed loop operation. The PCM determines if the front HO2S is operating properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 CHEVROLET – HO2S Insufficient Switching, Bank 1 Sensor 1

P1133 CHEVROLET Possible Causes

What Does This Mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Vacuum Leak
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 Harness is Open or Shorted
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 Circuit, Poor Electrical Connection

How to Fix Code P1133 CHEVROLET?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set the P1133 code.

Possible Symptoms

  • Check Engine Light On (or Service Engine Soon Warning Light)

P1133 CHEVROLET Meaning

The Powertrain Control Module (PCM) monitors the activity of the Heated Oxygen Sensor (HO2S) for 90 seconds after closed-loop operation begins. The PCM determines if the front HO2S is operating correctly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 DODGE – Intermittent Low Voltage in ECT Sensor Circuit

How to Fix P1133 DODGE 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 illuminated (or soon-to-be-serviced engine warning light)

P1133 DODGE Meaning

Intermittent low voltage in the ECT sensor circuit is the generic description of the Dodge P1133 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Dodge P1133 OBDII code.

P1133 FORD – Bank 1 Fuel Control Shifted Lean

P1133 FORD Possible Causes

  • Faulty HO2S11
  • Faulty Mass Air Flow (MAF) sensor
  • Fuel system malfunction
  • HO2S11 harness open or shorted
  • Poor electrical connection in HO2S11 circuit

How to Fix P1133 FORD 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 Service Engine Soon warning light)

P1133 FORD Meaning

Bank 1 Fuel Control Shifted Lean is the generic description for Ford code P1133, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about Ford OBDII code P1133.

P1133 GMC – Insufficient HO2S Switching, Bank 1 Sensor 1

P1133 GMC Possible Causes

What does this mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Vacuum leak
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 harness is open or shorted
  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1 circuit, poor electrical connection

How to Fix Code P1133 GMC?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set code P1133.

Possible Symptoms

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

P1133 GMC Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation begins. The PCM determines if the front HO2S is working properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 HONDA – Insufficient HO2S Heater Control Circuit Current Bank 1 Sensor 1

P1133 HONDA Possible Causes

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
  • Heated Oxygen Sensor (HO2S), Bank 1, Sensor 1 circuit, poor electrical connection
  • Air leak in the exhaust near the O2 sensor

How to Fix Code P1133 HONDA?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set the P1133 code.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)

P1133 HONDA Meaning

The Engine Control Module (ECM) monitors the activity of the Heated Oxygen Sensor (HO2S) for 90 seconds after the start of closed loop operation. The ECM determines if the front HO2S is working properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 ISUZU – H02S Insufficient Switching, Bank 1 Sensor 1

P1133 ISUZU Possible Causes

What does it mean?

  • Faulty Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
  • Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
  • Heated Oxygen Sensor (HO2S), Bank 1, Sensor 1 circuit, poor electrical connection
  • Air leak in exhaust near O2 sensor

How to Fix Code P1133 ISUZU?

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?

If the Powertrain Control Module (PCM) determines that the front HO2S has not switched enough times, the PCM will set the P1133 code.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon Warning Light)

P1133 ISUZU Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after the start of closed-loop operation. The PCM determines if the front HO2S is working properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

P1133 LEXUS – Malfunction in Air/Fuel Ratio Sensor Circuit Response, Bank 1 Sensor 1

P1133 LEXUS Possible Causes

What does this mean?

  • Faulty air/fuel ratio sensor, bank 1 sensor 1
  • Air/fuel ratio sensor, bank 1 Sensor 1 harness is open or shorted
  • Air/fuel ratio sensor, bank 1 sensor 1 circuit, poor electrical connection

How to fix code P1133 LEXUS?

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 service engine soon warning light)

P1133 LEXUS Meaning

The air-fuel ratio (A/F) sensor varies its output voltage in proportion 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.