P1289 FORD F150 Code – Cylinder Head Temperature Sensor Signal Above Self-Test Range

P1289 FORD F150 code possible causes

  • Faulty thermostat
  • Overheated engine
  • Low coolant level
  • Defective cylinder head temperature (CHT) sensor
  • Cylinder head temperature (CHT) sensor harness is open or short-circuited
  • Poor electrical connection in the cylinder head temperature (CHT) sensor circuit

| How is the P1289 FORD F150 code repair performed?

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

| P1289 FORD F150 code technical notes

Indicates a malfunction in the cylinder head temperature (CHT) sensor circuit (open).

| When is the P1289 FORD F150 code detected?

The engine control module (ECM) detected the cylinder head temperature above or below expected values

| What are the possible symptoms of the P1289 FORD F150 code?

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

| What is the meaning of the P1289 FORD F150 code?

The cylinder head temperature (CHT) sensor is mounted in the cylinder head wall and is not connected to any coolant passages. The CHT sends a signal to the powertrain control module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (258°F), the PCM disables four fuel injectors at a time. The PCM will alternate the four disabled injectors every 32 engine cycles. The four cylinders that are not injected with fuel act as air pumps to help cool the engine. If the temperature exceeds 154°C (310°F), the PCM disables all fuel injectors until the engine temperature drops below 154°C (310°F).

P1289 NISSAN MAXIMA Code – Air-Fuel Ratio Sensor 1 Slow Response Circuit Bank 2

P1289 NISSAN MAXIMA code possible causes

  • Faulty Air-Fuel Ratio (A/F) Sensor 1, Bank 2
  • Air-Fuel Ratio (A/F) Sensor 1 Bank 2 harness is open or shorted
  • Air-Fuel Ratio (A/F) Sensor 1 Bank 2 circuit poor electrical connection
  • Low fuel pressure
  • Faulty fuel injector
  • Intake air leaks
  • Exhaust gas leaks
  • Faulty PCV
  • Faulty mass air flow meter

| How is P1289 NISSAN MAXIMA code repair performed?

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.

| When is P1289 NISSAN MAXIMA code detected?

The response (from RICH to LEAN) of the A/F signal calculated by the ECM from the A/F sensor 1 signal takes longer than the specified time.

| What are the possible symptoms of P1289 NISSAN MAXIMA code?

  • Engine Light On (or Service Engine Soon Warning Light)
  • Possible rough engine idle

| What does P1289 NISSAN MAXIMA code mean?

The A/F sensor is a planar dual-cell limit current sensor. The A/F sensor element combines a Nernst concentration cell (sensor cell) with an oxygen pump cell, which transports ions. It has a heater in the element.
The sensor can precisely measure λ=1, but also in the lean and rich ranges. With its control electronics, the sensor delivers a clear, continuous signal across a wide λ range (0.7 < λ < air).
Exhaust gas components diffuse through the diffusion gap at the oxygen pump electrode and Nernst concentration cell, where they are brought to thermodynamic equilibrium.
An electronic circuit controls the pump current through the oxygen pump cell so that the exhaust gas composition in the diffusion gap remains constant at λ=1. Therefore, the A/F sensor can indicate the air/fuel ratio through this pumping current. Additionally, a heater is built into the sensor to ensure the required operating temperature of 700 to 800°C (1,292 to 1,472°F).

Code P1289 ACURA – Engine Oil Pressure Sensor Stuck at High Level

 P1289 Code ACURA possible causes

  • Faulty Engine Oil Pressure (EOP) sensor
  • Engine Oil Pressure sensor harness is open or shorted
  • Poor electrical connection in the Engine Oil Pressure sensor circuit
 

| How is the ACURA P1289 code repair performed?

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.

 

| What are the possible symptoms of ACURA P1289 code?

  • Engine Light On (or Service Engine Soon warning light)
 

| What does ACURA P1289 code mean?

Engine Oil Pressure Sensor Stuck High is the generic description for the Acura P1289 code, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we have no further information about the Acura P1289 OBDII code.

P1289 Code AUDI – Turbocharger Bypass Valve Short to Ground

P1289 AUDI code possible causes

  • Faulty turbocharger bypass valve
  • Turbocharger bypass valve harness is shorted
  • Poor electrical connection in turbocharger bypass valve circuit

| How is the AUDI P1289 code repair performed?

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

| What are the possible symptoms of AUDI P1289 code?

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

| What does P1289 AUDI code mean?

Turbocharger bypass valve shorted to ground is the generic description for Audi P1289 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Audi P1289 OBDII code.

P1289 CHRYSLER Code – Intake Manifold Tuning Valve Circuit Status

P1289 Code CHRYSLER Possible Causes

  • Faulty manifold tuning valve
  • Manifold tuning valve harness is open or shorted
  • Poor electrical connection in the manifold tuning valve circuit

| How is the P1289 CHRYSLER code repaired?

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.

| When is the P1289 CHRYSLER code detected?

Throttle opening condition – The manifold tuning valve is not in the commanded state

| What are the possible symptoms of P1289 CHRYSLER code?

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

| What does P1289 CHRYSLER code mean?

Manifold Tuning Valve Circuit Condition is the generic description for P1289 Chrysler code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Chrysler P1289 OBDII code.

P1289 DODGE Code – Manifold Tuning Valve Circuit Status

P1289 Code DODGE Possible Causes

  • Faulty manifold tuning valve
  • Manifold tuning valve harness is open or shorted
  • Poor electrical connection in manifold tuning valve circuit

| How is DODGE Code P1289 Repaired?

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

| When is DODGE Code P1289 Detected?

Throttle opening condition – The manifold tuning valve is not in the commanded state

| What are the Possible Symptoms of DODGE Code P1289?

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

| What Does DODGE Code P1289 Mean?

Manifold tuning valve circuit condition is the generic description for Dodge P1289 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Dodge P1289 OBDII code.

P1289 Code FORD – Cylinder Head Temperature Sensor Signal Above Self-Test Range

 P1289 Code FORD Possible Causes

  • Faulty thermostat
  • Overheated engine
  • Low coolant level
  • Defective cylinder head temperature (CHT) sensor
  • Cylinder head temperature (CHT) sensor harness is open or short-circuited
  • Poor electrical connection in the cylinder head temperature (CHT) sensor circuit
 

| How is the P1289 FORD code repaired?

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

 

| When is the P1289 FORD code detected?

The engine control module (ECM) detected the cylinder head temperature above or below expected values

| What are the possible symptoms of the P1289 FORD code?

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

| What does the P1289 FORD code mean?

The cylinder head temperature (CHT) sensor is mounted in the cylinder head wall and is not connected to any coolant passages. The CHT sends a signal to the powertrain control module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (258°F), the PCM shuts off four fuel injectors at a time. The PCM will alternate the four disabled injectors every 32 engine cycles. The four cylinders that are not injected with fuel act as air pumps to help cool the engine. If the temperature exceeds 154°C (310°F), the PCM shuts off all fuel injectors until the engine temperature drops below 154°C (310°F).

P1289 Code HONDA – Engine Oil Pressure Sensor Stuck at High Level

P1289 Code HONDA possible causes

  • Faulty Engine Oil Pressure (EOP) sensor
  • Engine Oil Pressure sensor harness is open or shorted
  • Poor electrical connection in the Engine Oil Pressure sensor circuit

| How is the HONDA P1289 code repair performed?

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

| What are the possible symptoms of HONDA P1289 code?

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

| What does HONDA P1289 code mean?

Engine Oil Pressure Sensor Stuck High is the generic description for Honda P1289 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Honda P1289 OBDII code.

P1289 INFINITI Code – Air-Fuel Ratio Sensor 1 Slow Response Circuit Bank 2

P1289 Code INFINITI Possible Causes

  • Faulty Air Fuel Ratio (A/F) Sensor 1, Bank 2
  • Air Fuel Ratio (A/F) Sensor 1, Bank 2 Harness is open or shorted
  • Air Fuel Ratio (A/F) Sensor 1, Bank 2 Circuit poor electrical connection
  • Low fuel pressure
  • Faulty fuel injector
  • Intake air leaks
  • Exhaust gas leaks
  • Faulty PCV
  • Faulty mass air flow meter

| How is INFINITI Code P1289 Repaired?

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.

| When is INFINITI Code P1289 Detected?

The response (from RICH to LEAN) of the A/F signal calculated by the ECM from the A/F sensor 1 signal takes longer than the specified time.

| What are the Possible Symptoms of INFINITI P1289 Code?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible rough engine idle

| What Does INFINITI Code P1289 Mean?

The A/F sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen pump cell, which transports ions. It has a heater inside the element.
The sensor is capable of precisely measuring λ=1, but also in the lean and rich ranges. With its control electronics, the sensor delivers a clear and continuous signal over a wide λ range (0.7 < λ < air).
The exhaust gas components diffuse through the diffusion gap at the oxygen pump electrode and the Nernst concentration cell, where they are brought to thermodynamic equilibrium.
An electronic circuit controls the pump current through the oxygen pump cell so that the composition of the exhaust gas in the diffusion gap remains constant at λ = 1. Therefore, the A/F sensor is able to indicate the air/fuel ratio by this pumping current. In addition, a heater is integrated into the sensor to ensure the required operating temperature of 700 to 800 C (1,292 to 1,472 F).

P1289 Code LINCOLN – Cylinder Head Temperature Sensor Signal Above Self-Test Range

P1289 Code LINCOLN Possible Causes

  • Faulty thermostat
  • Overheated engine
  • Low coolant level
  • Defective cylinder head temperature (CHT) sensor
  • Cylinder head temperature (CHT) sensor wiring is open or shorted
  • Poor electrical connection in the cylinder head temperature (CHT) sensor circuit

| How is the P1289 LINCOLN code repaired?

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

| When is the P1289 LINCOLN code detected?

The engine control module (ECM) detected the cylinder head temperature above or below expected values

| What are the possible symptoms of P1289 LINCOLN code?

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

| What does P1289 LINCOLN code mean?

The cylinder head temperature (CHT) sensor is mounted in the cylinder head wall and is not connected to any coolant passages. The CHT sends a signal to the powertrain control module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (258°F), the PCM shuts off four fuel injectors at a time. The PCM will alternate the four disabled injectors every 32 engine cycles. The four cylinders that are not injected with fuel act as air pumps to help cool the engine. If the temperature exceeds 154°C (310°F), the PCM shuts off all fuel injectors until the engine temperature drops below 154°C (310°F).