P1128 2000 HONDA CIVIC Possible Causes

• Engine mechanical condition
• Faulty Manifold Absolute Pressure (MAP) sensor
• Manifold Absolute Pressure (MAP) sensor harness is open or shorted
• Poor electrical connection in Manifold Absolute Pressure (MAP) sensor circuit

How to Fix Code P1128 2000 HONDA CIVIC?

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.

Possible Symptoms

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

P1128 2000 HONDA CIVIC Meaning

The Manifold Absolute Pressure (MAP) sensor detects the intake manifold absolute pressure (vacuum) and converts it into electrical signals. The MAP sensor outputs a low signal voltage at high vacuum (idle) and a high signal voltage at low vacuum (wide open throttle).
The Engine Control Module (ECM) compares a predetermined MAP value for a given throttle position and intake manifold absolute pressure to the MAP sensor output voltage value.
If the MAP sensor delivers a voltage lower than expected, the ECM detects a malfunction and stores a DTC.

P1128 2001 FORD F150 Possible Causes

• Crossed HO2S harness connectors
• Powertrain Control Module (PCM) harness connector

How to Fix Code P1128 2001 FORD F150?

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

P1128 2001 FORD F150 Meaning

The Diagnostic Trouble Code (DTC) will set whenever the Powertrain Control Module (PCM) detects the upstream oxygen sensor is swapped from Bank to Bank. The Heated Exhaust Gas Oxygen (HEGO) sensor monitor checks and determines if the HO2S signal response for fuel trim change matches the correct engine bank. The code sets when the HO2S being tested is not indicated.

P1128 NISSAN ALTIMA SEDAN Possible Causes

• Faulty throttle control motor
• Throttle control motor harness is open or shorted
• Poor electrical connection in throttle control motor circuit

How to Fix Code P1128 NISSAN ALTIMA SEDAN?

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

When is the Code Detected?

The Engine Control Module (ECM) detects short circuits between the ECM and the throttle control motor.

Possible Symptoms

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

P1128 NISSAN ALTIMA SEDAN Meaning

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The current throttle valve opening angle is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle correctly in response to driving conditions.

P1128 2003 INFINITI G35 Possible Causes

• Faulty throttle control motor
• Throttle control motor harness is open or shorted
• Poor electrical connection in throttle control motor circuit

How to Fix P1128 2003 INFINITI G35 Code?

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 Code Detected?

The Engine Control Module (ECM) detects short circuits between the ECM and the throttle control motor.

Possible Symptoms

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

P1128 2003 INFINITI G35 Meaning

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The current throttle valve opening angle is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle correctly in response to driving conditions.

P1128 2003 NISSAN ALTIMA SEDAN Possible Causes

• Faulty throttle control motor
• Throttle control motor harness is open or shorted
• Poor electrical connection in throttle control motor circuit

How to Fix Code P1128 2003 NISSAN ALTIMA SEDAN?

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 Code Detected?

The Engine Control Module (ECM) detects short circuits between the ECM and the throttle control motor.

Possible Symptoms

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

P1128 2003 NISSAN ALTIMA SEDAN Meaning

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The current throttle valve opening angle is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle correct in response to driving conditions.

P1128 HONDA ACCORD Possible Causes

• Mechanical condition of the engine
• Faulty Manifold Absolute Pressure (MAP) sensor
• Manifold Absolute Pressure (MAP) sensor harness is open or shorted
• Poor electrical connection in the Manifold Absolute Pressure (MAP) sensor circuit

How to Fix P1128 HONDA ACCORD 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

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

P1128 HONDA ACCORD Meaning

The Manifold Absolute Pressure (MAP) sensor detects the absolute pressure in the intake manifold (vacuum) and converts it into electrical signals. The MAP sensor outputs a low signal voltage at high vacuum (idle) and a high signal voltage at low vacuum (wide open throttle).
The Engine Control Module (ECM) compares a predetermined MAP value for a given throttle position and manifold absolute pressure to the MAP sensor’s output voltage value.
If the MAP sensor delivers a voltage lower than expected, the ECM detects a malfunction and stores a DTC.

P1128 ACURA Possible Causes

• Engine mechanical condition
• Faulty Manifold Absolute Pressure (MAP) sensor
• Manifold Absolute Pressure (MAP) sensor harness is open or shorted
• Poor electrical connection in the Manifold Absolute Pressure (MAP) sensor circuit

How to Fix ACURA Code P1128?

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)

P1128 ACURA Meaning

The Manifold Absolute Pressure (MAP) sensor detects the intake manifold absolute pressure (vacuum) and converts it into electrical signals. The MAP sensor outputs a low signal voltage at high vacuum (idle) and a high signal voltage at low vacuum (wide open throttle).
The Engine Control Module (ECM) compares a predetermined MAP value at a given throttle position and intake manifold absolute pressure to the MAP sensor output voltage value.
If the MAP sensor delivers a voltage lower than expected, the ECM detects a malfunction and stores a DTC.

P1128 AUDI Possible Causes

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

How to Fix P1128 AUDI Code?

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.

Possible Symptoms

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

P1128 AUDI Meaning

Fuel Trim System Too Lean Long Term Bank 1 is the generic description for Audi P1128 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Audi P1128 OBDII code.

P1128 CHRYSLER Possible Causes

• Low battery charge
• Faulty totally integrated power module
• Fuel supply system
• Manifold absolute pressure (MAP) sensor or wiring connectors
• O2 sensor wiring or connectors
• Engine mechanical system
• Faulty powertrain control module (PCM)

How to Fix P1128 CHRYSLER 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.

Technical Notes

Start by checking the battery charge and terminals and the alternator charge. If the battery and alternator are in good condition, the totally integrated power module may be damaged.

Possible Symptoms

• Engine light on (or engine service warning light soon)
• Engine hesitation
• Engine stalling
• Engine misfire

P1128 CHRYSLER Meaning

The powertrain control module (PCM) detects a condition where the vehicle has remained in open loop fuel control, from a start-up condition, longer than a calibrated duration, when conditions would otherwise have closed loop operation.

P1128 DODGE Possible Causes

• Fuel delivery system
• Manifold Absolute Pressure (MAP) sensor or wiring connectors
• O2 sensor wiring or connectors
• Engine mechanical system
• Faulty Powertrain Control Module (PCM)

How to Fix P1128 DODGE 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.

Start by checking the battery load and terminals and the alternator charge. If the battery and alternator are in good condition, the totally integrated power module may be damaged.

Possible Symptoms

• Check engine light on (or service engine soon warning light)
• Engine hesitation
• Engine stalling
• Engine misfire

P1128 DODGE Meaning

The Powertrain Control Module (PCM) detects a condition where the vehicle has remained in open loop fuel control, from a start-up condition, longer than a calibrated duration, when conditions would otherwise have closed loop operation.