P1092 INFINITI – VVEL Camshaft Position Sensor Circuit, Bank 2

P1092 INFINITI Possible Causes

  • Faulty VVEL control shaft position sensor, bank 2
  • VVEL control shaft position sensor, bank 2 harness is open or shorted
  • Poor electrical connection in the VVEL control shaft position sensor circuit, bank 2
  • Faulty VVEL control module

How to Fix P1092 INFINITI 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 Service Engine Soon Warning Light)

Symptoms:

  • Malfunction Indicator Lamp (Check Engine Light) illuminated
  • Loss of power
  • Rough idle
  • Engine stalling

Causes:

  • Faulty VVEL position sensor
  • Faulty sensor wiring
  • Problem with the VVEL control module
  • Problem with the ECU (Engine Control Unit)

Diagnostic:

Diagnosing the P1092 code requires an OBD-II scan tool and a multimeter. A mechanic can use the scan tool to read the fault codes and view live data from the VVEL sensor. The multimeter can be used to test the voltage and resistance of the sensor and wiring.

Repair:

Repairing the P1092 code depends on the cause of the problem.

  • Faulty VVEL position sensor: The sensor must be replaced.
  • Faulty sensor wiring: The wiring must be repaired or replaced.
  • Problem with the VVEL control module: The control module must be replaced.
  • Problem with the ECU: The ECU must be reprogrammed or replaced.

Tips:

  • If you have the P1092 code, it is important to have it diagnosed and repaired as soon as possible.
  • Not fixing the problem can lead to more serious engine damage.
  • You can find more information about the P1092 code on online forums and automotive repair websites.

P1092 INFINITI Meaning

VVEL (Variable Valve Event & Lift) is a system that continuously controls the valve event and valve lift. The rotational movement of the drive shaft equipped with an eccentric cam is transmitted to the output cam via the rocker arm and two types of links to push the intake valve down. The Engine Control Module (ECM) decides the target valve lift based on driving conditions and sends the control signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by moving the link pivot point. As a result, the valve lift changes continuously to improve engine power and response.
The VVEL control shaft position sensor (1) is placed on the VVEL actuator sub-assembly and detects the position angle of the control shaft. A magnet is pressed into the arm on the edge of the control shaft.
The magnetic field changes as the magnet rotates with the arm, causing a change in the sensor’s output voltage. The VVEL control module detects the actual position angle via the voltage change and sends the signal to the ECM.

P1092 NISSAN – VVEL Camshaft Position Sensor Circuit, Bank 2

P1092 NISSAN Possible Causes

  • Faulty VVEL control shaft position sensor, bank 2
  • VVEL control shaft position sensor bank 2 harness is open or shorted
  • Poor electrical connection in VVEL control shaft position sensor circuit, bank 2
  • Faulty VVEL control module

How to Fix P1092 NISSAN 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

Illuminated engine light (or service engine soon warning light)

P1092 NISSAN Meaning

VVEL (Variable Valve Event & Lift) is a system that continuously controls valve event and valve lift. The rotational movement of the drive shaft equipped with an eccentric cam is transmitted to the output cam via the rocker arm and two types of links to push the intake valve. The engine control module (ECM) determines the target valve lift based on driving conditions and sends the control signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the output cam movement by shifting the link support point. As a result, valve lift continuously changes to improve engine power and response.
The VVEL control shaft position sensor (1) is located on the VVEL actuator sub-assembly and detects the angle of the control shaft position. A magnet is pressed into the arm on the edge of the control shaft.
The magnetic field changes when the magnet rotates with the arm, causing a change in the sensor’s output voltage. The VVEL control module detects the actual position angle through the voltage change and sends the signal to the ECM.

P1092 Porsche – Hot Film Air Mass Flow Sensor Below Threshold Value

P1092 PORSCHE Possible Causes

  • Faulty Mass Air Flow (MAF) sensor
  • Mass Air Flow (MAF) sensor harness is open or shorted
  • Poor electrical connection in the Mass Air Flow (MAF) sensor circuit

How to Fix P1092 PORSCHE 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 Service Engine Soon Warning Light)

P1092 PORSCHE Meaning

Hot Film Mass Air Flow Sensor Below Limit Value is the generic description for Porsche P1092 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the P1092 Porsche OBDII code.

P1092 SUBARU – Open Tumble Generator System 2 Valve

P1092 SUBARU Possible Causes

  • Faulty tumble generator
  • Tumble generator harness is open or shorted
  • Poor electrical connection in tumble generator circuit

How to Fix P1092 SUBARU 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)

P1092 SUBARU Meaning

The tumble generator system uses an electronically controlled throttle valve in each intake port.
During cold idle, the tumble generator system will redirect the air charge through another port. These ports have a finishing characteristic that causes the air/fuel mixture to swirl and tumble considerably and creates better combustion. This results in better idle quality, cleaner emissions, and easier cold starts.
Once the vehicle is warmed up, the tumble generator system will be disabled and the intake air charge will be directed through the standard intake ports.
The diagnostic trouble code (DTC) sets when the tumble generator valve is detected open when the desired position is closed.

P1093 – VVEL Actuator Motor, Row 2

P1093 Possible Causes

  • Faulty VVEL actuator motor
  • VVEL actuator motor harness is open or shorted
  • Poor electrical connection in VVEL actuator motor circuit
  • Faulty VVEL actuator assembly
  • Faulty VVEL ladder assembly
  • Faulty VVEL control module

How to Fix Code P1093?

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

Malfunction Indicator Light illuminated (or service engine soon warning light)

P1093 Meaning

VVEL (Variable Valve Event & Lift) is a system that continuously controls valve event and valve lift. The rotational movement of the drive shaft equipped with an eccentric cam is transmitted to the output cam via the rocker arm and two types of link rods to depress the intake valve. The Engine Control Module (ECM) determines the target valve lift based on driving conditions and sends the control signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the output cam movement by shifting the linkage pivot point. As a result, valve lift continuously changes to improve engine power and response.

P1093 AUDI – Fuel Mixture Malfunction Bank 1

P1093 AUDI Possible Causes

  • Engine mechanical condition
  • Fuel system malfunction
  • Ignition system malfunction
  • Faulty oxygen sensor

How to Fix P1093 AUDI Code?

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

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P1093 AUDI Meaning

Fuel Trim Malfunction Bank 2 is the generic description for Audi P1093 code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about the Audi P1093 OBDII code.

P1093 BMW – Pre-catalyst fuel mixture too rich, bank 2

P1093 BMW Possible Causes

  • Low fuel pressure
  • Major engine vacuum leak
  • Faulty mass air flow (MAF) sensor
  • Faulty ignition
  • Faulty fuel injector

How to Fix BMW P1093 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)

P1093 BMW Meaning

Pre-catalyst fuel mixture too rich, bank 2 is the generic description for BMW P1093 code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have additional information about the P1093 BMW OBDII code.

P1093 ISUZU – Fuel Rail Pressure Too Low

The ISUZU P1093 code indicates an abnormally low fuel pressure in the common rail, detected by the engine control module (ECM). It is a critical code for Common Rail diesel engines, particularly for ISUZU models like the D-Max, where a loss of pressure can lead to engine stalling or a failure to start.

⚠️ Detailed Meaning of the ISUZU P1093 Code

This code is triggered when:

  • ➤ The differential pressure is –10 MPa for >15 s between 0 and 900 RPM, or

  • ➤ The pressure drops to –15 MPa for >15 s above 1200 RPM

This indicates that fuel is not reaching the injectors properly.

🧭 Probable Causes

  1. 🔧 Clogged fuel filter — The most common Cause #1.

  2. 🔧 Leak in the fuel circuit (porous hose, loose connection, faulty check valve, etc.)

  3. 🔧 Faulty high-pressure fuel pump

  4. 🔧 Faulty rail pressure sensor (FRP) or erroneous signal

  5. 🔧 Stuck injector or internal leak

🛠️ Recommended Repair Procedure

1. Visual Inspection

  • Check the entire low-pressure circuit (from the tank to the filter) up to the rail:

    • Visible leaks,

    • Cracked or damp hoses,

    • Sensor electrical connectors.

2. Replace the Fuel Filter

  • If the filter has more than 20,000 to 30,000 km, replace it first.

  • Ensure there is no air in the circuit (bleed it manually or with a diagnostic tool).

3. FRP Sensor Test

  • Measure the voltage sent by the sensor during startup.

  • Check with the diagnostic tool if the actual pressure matches the setpoint.

  • If inconsistent → suspect the sensor or its wiring harness.

4. Pressure Test with OBD Scanner

  • With the engine running or during startup, verify that the pressure rises above 250 bar (25 MPa).

  • If the pressure remains low:

    • Test the high-pressure pump (and the regulating valve).

    • Test the injectors one by one for excessive return leakage.

5. Injector Test (Return)

  • Disconnect the return hoses and connect transparent tubes to check if an injector has abnormally high return flow (which would drop the rail pressure).

📌 Conclusion

The P1093 code on ISUZU is often due to a clogged fuel filter or an air or fuel leak, but it can also reveal a worn high-pressure pump or a faulty injector.

P1093 VOLKSWAGEN – Fuel Mixture Malfunction 2, Bank 1

Explanation of Volkswagen Code P1093: “Fuel Trim Malfunction (Bank 1, Sensor 2)”

Severity

  • Level : 🔴 High (risk of catalyst damage, excessive fuel consumption, and inspection failure).
  • Urgency :
  • Unbalanced air-fuel mixture (too rich or too lean).
  • Risk of catalyst overheating (high replacement cost).

Common Symptoms

  • 🚨 Check engine light on (MIL) with code P1093.
  • ⛽ Abnormally high fuel consumption.
  • 🌀 Unstable idle or vibrations.
  • 💨 Black smoke (mixture too rich) or gasoline smell.

Main Causes

  1. Fuel system problems :
  • Faulty injectors (leaks, clogging).
  • Inadequate fuel pressure (weak pump, clogged filter).
  1. Lambda sensor failure :
  • Post-catalytic sensor (Bank 1, Sensor 2) fouled or faulty.
  1. Air/vacuum leaks :
  • Cracked manifold gaskets, faulty PCV hose.
  1. Mechanical problems :
  • Low compression (worn rings, burnt valves).
  • EVAP system leaks.

Diagnostic Procedure

Step 1: OBD2 Data Analysis

  • Use a compatible VW scanner (e.g., VCDS) to:
  • Read short-term/long-term fuel trim values (STFT/LTFT).
  • Check lambda sensor data (Bank 1, Sensor 2).

Step 2: Injector Testing

  • Resistance test: Measure each injector (typical value: 12-18 Ω).
  • Spray pattern test: Use an injector test kit to check the spray pattern.

Step 3: Fuel Pressure Check

  • Fuel pressure gauge:
  • Expected values:
    • Gasoline: 3.5-4 bars (idle).
    • Diesel: 250-300 bars (Common Rail).

Step 4: Lambda Sensor Inspection

  • Voltage test:
  • Post-catalytic sensor should oscillate between 0.1V and 0.9V (if stable, sensor faulty).
  • Cleaning: Use a specific sensor cleaner (e.g., CRC Oxygen Sensor Cleaner).

Solutions & Costs

Problem Solution Average Cost
Faulty injector Cleaning or replacement €80 – €300
Faulty lambda sensor Replacement €100 – €250
Weak fuel pump Replacement €300 – €800
Air leaks Replacement of gaskets/manifold €150 – €400

Mistakes to Avoid

  • ❌ Ignoring related codes (e.g., P0171, P0174): They may indicate a common cause.
  • ❌ Neglecting the fuel filter: Replace it every 60,000 km (or as per manual).

Commonly Affected Volkswagen Models

  • Volkswagen Golf (1.4 TSI, 2.0 TDI).
  • Volkswagen Passat (B7, B8).
  • Volkswagen Tiguan (1.5 TSI, 2.0 TDI).

Practical Case

  • Problem: Code P1093 on a Golf VII 1.6 TDI with excessive consumption.
  • Diagnosis: Post-catalytic sensor (Bank 1, Sensor 2) fouled by carbon deposits.
  • Solution: Sensor cleaning + fuel filter replacement.

Pro Tips

  1. Use VCDS: Access fuel trim adaptations for precise adjustments.
  2. Check the EVAP system: A leak can skew lambda sensor readings.

If the code persists after repair, consult a Volkswagen specialist equipped with VCDS for advanced engine parameter analysis! 🔧🚗💨

P1094 – Slow Response of O2 Sensor Circuit in Rich Control Range, Bank 2 Sensor 1

P1094 Possible Causes

  • Faulty O2 sensor, Bank 2 Sensor 1
  • O2 sensor, Bank 2 Sensor 1 harness is open or shorted
  • Poor electrical connection in Bank 2 Sensor 1 O2 sensor circuit

How to Fix Code P1094?

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)

P1094 Meaning

Slow response from O2 sensor circuit in rich control range. Bank 2 Sensor 1 is the generic description for code P1094, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we do not have further information about OBDII code P1094.