P1168 2003 INFINITI G35 Possible Causes

• Faulty Heated Oxygen Sensor 1, Bank 2
• Heated Oxygen Sensor 1, Bank 2 harness is open or shorted
• Poor electrical connection in the Heated Oxygen Sensor 1, Bank 2 circuit

How to Fix Code P1168 2003 INFINITI G35?

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 closed-loop control function for Bank 1 does not operate even when the vehicle is running under specified conditions; the closed-loop control function for Bank 2 does not operate even when the vehicle is running under specified conditions.

Possible Symptoms

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

P1168 2003 INFINITI G35 Meaning

The Engine Control Module (ECM) performs an ON/OFF operation control of the corresponding Heated Oxygen Sensor 1 heater according to the engine operating condition to maintain the Heated Oxygen Sensor 1 element temperature within the specified range.

P1168 2005 NISSAN PATHFINDER Possible Causes

• Faulty Air Fuel Ratio Sensor 1, Bank 2
• Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
• Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection

How to Fix Code P1168 2005 NISSAN PATHFINDER?

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 closed loop control function for Bank 1 does not operate even when the vehicle is running under specified conditions, the closed loop control function for Bank 2 does not operate even when the vehicle is running under specified conditions.

Possible Symptoms

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

P1168 2005 NISSAN PATHFINDER Meaning

The Engine Control Module (ECM) performs on/off control of the air fuel ratio (A/F) heater corresponding to the engine operating condition to maintain the air fuel ratio (A/F) sensor element temperature within the specified range.

P1168 2004 INFINITI G35 Possible Causes

• Faulty Heated Oxygen Sensor 1, Bank 2
• Heated Oxygen Sensor 1 Bank 2 harness is open or shorted
• Poor electrical connection in Heated Oxygen Sensor 1 Bank 2 circuit

How to Fix Code P1168 2004 INFINITI G35?

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 closed loop control function for Bank 1 does not operate even when the vehicle is running under specified conditions, the closed loop control function for Bank 2 does not operate even when the vehicle is running under specified conditions.

Possible Symptoms

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

P1168 2004 INFINITI G35 Meaning

The Engine Control Module (ECM) performs an ON/OFF operation control of the corresponding Heated Oxygen Sensor 1 heater according to the engine operating condition to maintain the Heated Oxygen Sensor 1 element temperature within the specified range.

P1168 ACURA Possible Causes

• Faulty air/fuel ratio sensor
• Air/fuel ratio sensor harness is open or shorted
• Poor electrical connection in the air/fuel ratio sensor circuit

How to Fix P1168 ACURA 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

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

P1168 ACURA Meaning

The air/fuel ratio (A/F) sensor 1 is installed in the exhaust system and detects the oxygen content in the exhaust gases. The A/F sensor sends the output voltage to the engine control module (ECM). A heating element for the sensor element is built into the A/F sensor (sensor 1). It is activated and heats the sensor to stabilize and speed up the detection of oxygen content by controlling the current flowing through the heater. An increase in current stabilizes when the voltage applied to the element electrode reaches a certain range because the amount of oxygen that is routed through the diffusion layer is limited. The current amperage is proportional to the oxygen content in the exhaust gases, so the air/fuel ratio is detected by measuring the current amperage. The ECM compares a set target air/fuel ratio with the detected air/fuel ratio and controls the fuel injection timing.
If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean and the ECM uses A/F feedback control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich and the ECM uses A/F feedback control to issue a Lean command.

P1168 FORD Possible Causes

• Faulty fuel rail pressure sensor
• Fuel rail pressure sensor harness is open or shorted
• Poor electrical connection in the fuel rail pressure sensor circuit
• Low or no fuel

How to Fix Code P1168 FORD?

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

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

P1168 FORD Meaning

The Component Comprehensive Monitor (CCM) monitors the fuel rail pressure (FRP) for acceptable fuel pressure. The Engine Control Module (ECM) detected that the fuel pressure was low for the operating condition. The test fails when the fuel pressure drops below a calibrated value.

P1168 HONDA Possible Causes

• Faulty air/fuel ratio sensor
• Air/fuel ratio sensor harness is open or shorted
• Poor electrical connection in air/fuel ratio sensor circuit

How to Fix P1168 HONDA Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding cable 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)

P1168 HONDA Meaning

The air/fuel ratio (A/F) sensor 1 is installed in the exhaust system and detects the oxygen content in the exhaust gases. The A/F sensor sends the output voltage to the Engine Control Module (ECM). A heating element for the sensor element is built into the A/F sensor (sensor 1). It is activated and heats the sensor to stabilize and speed up the detection of the oxygen content by controlling the current flowing through the heater. An increase in current stabilizes when the voltage applied to the element electrode reaches a certain range because the amount of oxygen that is routed through the diffusion layer is limited. The current amperage is proportional to the oxygen content in the exhaust gases, so the air/fuel ratio is detected by measuring the current amperage. The ECM compares a set target air/fuel ratio with the detected air/fuel ratio and controls the fuel injection timing.
If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean and the ECM uses A/F feedback control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich and the ECM uses A/F feedback control to issue a Lean command.

P1168 HYUNDAI Possible Causes

• Faulty Heated Oxygen Sensor 2, Bank 1
• Open or short circuit in Heated Oxygen Sensor 2, Bank 1 wiring harness
• Poor electrical connection in Heated Oxygen Sensor 2, Bank 1 circuit

How to Fix Code P1168 HYUNDAI?

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

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

P1168 HYUNDAI Meaning

O2 Sensor Heater Power Sensor 2, Bank 1 is the generic description for Hyundai code P1168, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about Hyundai OBDII code P1168.

P1168 INFINITI Possible Causes

For 2005 and later models:

• Faulty Air/Fuel Ratio Sensor 1, Bank 2
• Air/Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
• Poor electrical connection in Air/Fuel Ratio Sensor 1 Bank 2 circuit

For pre-2005 models:

• Faulty Heated Oxygen Sensor 1, Bank 2
• Heated Oxygen Sensor 1 Bank 2 harness is open or shorted
• Poor electrical connection in Heated Oxygen Sensor 1 Bank 2 circuit

How to Fix P1168 INFINITI 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.

2004-2005 Infiniti FX35 2WD
2004-2005 Infiniti FX35 4WD
2004-2005 Infiniti G35 Sedan 2WD
2004-2005 Infiniti G35 Sedan 4WD

When is the Code Detected?

The closed loop control function for Bank 1 does not operate even when the vehicle is running under specified conditions, the closed loop control function for Bank 2 does not operate even when the vehicle is running under specified conditions.

Possible Symptoms

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

P1168 INFINITI Meaning

The Engine Control Module (ECM) performs ON/OFF operation control of the Air/Fuel Ratio (A/F) sensor heater/Heated Oxygen Sensor 1 corresponding to the engine operating condition to maintain the Air/Fuel Ratio (A/F) sensor/Heated Oxygen Sensor 1 element temperature within the specified range.

P1168 LINCOLN Possible Causes

• Faulty fuel rail pressure sensor
• Fuel rail pressure sensor harness is open or shorted
• Poor electrical connection in the fuel rail pressure sensor circuit
• Low or no fuel

How to Fix Code P1168 LINCOLN?

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

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

P1168 LINCOLN Meaning

The Component Comprehensive Monitor (CCM) monitors the fuel rail pressure (FRP) for acceptable fuel pressure. The Engine Control Module (ECM) detected that the fuel pressure was low for the operating condition. The test fails when the fuel pressure falls below a calibrated value.

P1168 MAZDA Possible Causes

• Faulty fuel rail sensor
• Fuel rail sensor harness is open or shorted
• Poor electrical connection in the fuel rail sensor circuit

How to Fix Code P1168 MAZDA?

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.

Technical Notes

Fuel Rail Pressure (FRP)

Possible Symptoms

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

P1168 MAZDA Meaning

Fuel rail pressure sensor in range but low is the generic description for code P1168 Mazda, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Mazda P1168 OBDII code.