P1287 Code AUDI – Turbocharger Bypass Valve Open

The P1287 code on Audi vehicles indicates a malfunction in the turbocharger bypass valve circuit. This fault can reduce engine performance and damage the turbo. Detailed explanations to understand and resolve this issue.

Meaning of Audi P1287 Code

The generic code P1287 corresponds to an electrical or mechanical anomaly of the turbocharger bypass valve (also called wastegate). This component regulates turbo pressure to prevent overboost. A failure leads to power loss, increased fuel consumption, or engine damage.

Severity of P1287 Code

  • High Risk:
    • 🚨 A valve stuck in the open position deprives the engine of turbo pressure, drastically reducing power.
    • ⚠️ A short circuit can damage the ECU (Engine Control Unit).
    • 🔥 In case of prolonged overpressure, risk of turbocharger deterioration.

Symptoms of P1287 Code on Audi

  • 📉 Power loss (especially at high RPM).
  • 🚨 Check Engine light on.
  • 🔊 Abnormal whistling from the engine compartment.
  • ⛽ Increased fuel consumption.
  • 💨 Black smoke from the exhaust (incorrect boost).

Possible Causes of P1287 Code

1. Faulty Bypass Valve

  • Mechanical blockage (dirt, carbonized oil).
  • Punctured diaphragm or broken spring.

2. Electrical Issues

  • Short circuit or open circuit in the wiring harness.
  • Oxidized connector, bent or dislodged pins.

3. ECU Failure

  • Rare, but possible in case of overvoltage or software error.

Diagnosis and Repair of P1287 Code

🔍 Step 1: Visual Inspection

  • Locate the bypass valve (usually attached to the turbo or intake manifold).
  • Check the connector: corrosion, exposed wires, or loose fittings.

🔌 Step 2: Electrical Circuit Test

  • Use a multimeter to measure the valve’s resistance (expected value: 10–30 Ω).
  • Check the supply voltage (12 V with ignition on).

🛠️ Step 3: Cleaning or Replacement

  • Cleaning: Use a specific degreaser to remove carbon deposits.
  • Replacement: If the valve is stuck or damaged (average cost: €150–400).

🔧 Step 4: ECU Reset

  • Clear the code with an OBD-II scanner after repair.
  • Perform a road test to confirm the fault is gone.

Average Repair Cost

  • Cleaning: €50–100 (labor).
  • Valve replacement: €200–600 (part + labor).
  • Wiring harness repair: €100–300 (depending on complexity).

Preventive Tips

  • ✅ Use turbo cleaning additives every 30,000 km.
  • ✅ Regularly check the turbo’s electrical connections.
  • ✅ Opt for original parts for optimal durability.

FAQ: Frequently Asked Questions

❓ Can I drive with a P1287 code?

Avoid sudden acceleration. Uncontrolled turbo pressure can damage the engine.

❓ Why does the valve get stuck?

Carbon buildup (related to aging engine oil) is the main cause.

❓ Does the turbocharger need to be replaced?

No, unless prolonged overpressure has damaged the turbo blades.

Conclusion: Act Quickly to Protect the Turbo

The Audi P1287 code should not be ignored. A faulty bypass valve can lead to costly turbocharger failure. Follow the diagnostic steps or consult an Audi specialist for reliable repair.

P1287 BMW Code – Bank 2 Injection Valve Pneumatic Assist Control Circuit Switching Solenoid

| How is BMW P1287 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 BMW P1287 code?

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

| What is the meaning of BMW P1287 code?

The switching solenoid for pneumatically assisted injection valves, Bank 2 electrical control circuit, is the generic description for Bmw P1287 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the P1287 Bmw OBDII code.

P1287 BUICK Code – Low Voltage Accelerator Pedal Position Sensor 3 Circuit

| P1287 BUICK code possible causes

  • Faulty accelerator pedal position (APP)
  • Accelerator pedal position harness is open or shorted
  • Poor electrical connection in the accelerator pedal position circuit

| How is the P1287 BUICK code 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.

| What are the possible symptoms of P1287 BUICK code?

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

| What does P1287 BUICK code mean?

Accelerator pedal position (APP) sensors are located in the throttle actuator control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. APP sensor signal voltages increase when the accelerator pedal is pressed.

P1287 Code CADILLAC – Low Voltage Accelerator Pedal Position Sensor 3 Circuit

Code P1287 CADILLAC: Causes, Symptoms and Solutions

Possible Causes of Code P1287

🔧 Accelerator Pedal Position (APP) Sensor Failure
🔧 Damaged Wiring Harness (open or short circuit)
🔧 Poor Electrical Connection (corroded, broken or improperly connected connectors)

How to Fix Code P1287?

✔ Start by visually inspecting the wiring harness and associated connectors.
✔ Check the condition of electrical components, including connector pins (broken, bent or corroded).
✔ Replace defective parts if necessary.

Symptoms of Code P1287

⚠ Check Engine Light On (or “Service Engine Soon” light)

Meaning of Code P1287

Code P1287 is related to Accelerator Pedal Position (APP) sensors, which are integrated into the Throttle Actuator Control (TAC) module, located on the pedal assembly.

The system operates with three separate APP sensors, each having its own signal circuit, low reference and 5-volt reference. When the pedal is pressed, the sensor voltages increase, allowing the system to precisely calculate throttle position.

A malfunction in any of these sensors or their circuits can cause errors in vehicle acceleration management, triggering the P1287 code.

If the problem persists after inspection, using a diagnostic scanner is recommended for further analysis. 🚗🔍

P1287 CHEVROLET Code – Accelerator Pedal Position Sensor 3 Circuit Low Voltage

| P1287 CHEVROLET code possible causes

  • Faulty accelerator pedal position (APP)
  • Accelerator pedal position harness is open or shorted
  • Poor electrical connection in the accelerator pedal position circuit

| How is the P1287 CHEVROLET 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 the P1287 CHEVROLET code?

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

| What is the meaning of the P1287 CHEVROLET code?

The accelerator pedal position (APP) sensors are located in the throttle actuator control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.

Code P1287 CHRYSLER – Low Fuel Injection Pump Controller Supply Voltage

| P1287 code CHRYSLER possible causes

  • Open fuel injection pump ground circuit
  • Faulty battery

| How is the repair of CHRYSLER code P1287 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 CHRYSLER code P1287?

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

| What is the meaning of CHRYSLER code P1287?

The fuel injection pump controller low supply voltage condition is the generic description for Chrysler code P1287, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Chrysler P1287 OBDII code.

P1287 DODGE Code – Low Fuel Injection Pump Controller Supply Voltage

| P1287 DODGE code possible causes

  • Fuel injection pump ground circuit open
  • Faulty battery

| How is the P1287 DODGE 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 P1287 DODGE code?

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

| What does P1287 DODGE code mean?

The fuel injection pump controller low supply voltage condition is the generic description for P1287 Dodge code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the P1287 Dodge OBDII code.

P1287 GMC Code – Low Voltage Accelerator Pedal Position Sensor 3 Circuit

| P1287 Code GMC Possible Causes

  • Faulty Accelerator Pedal Position (APP)
  • Accelerator Pedal Position harness is open or shorted
  • Poor electrical connection in the Accelerator Pedal Position circuit

| How is GMC Code P1287 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.

| What are the Possible Symptoms of GMC Code P1287?

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

| What is the Meaning of GMC Code P1287?

The Accelerator Pedal Position (APP) sensors are located in the Throttle Actuator Control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.

P1287 HONDA Code – High Pressure Rocker Arm Oil Pressure Switch Circuit

| P1287 HONDA code possible causes

  • Faulty rocker arm oil pressure switch
  • Rocker arm oil pressure switch harness is open or shorted
  • Poor electrical connection in the rocker arm oil pressure switch circuit

| How is the P1287 HONDA 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 P1287 HONDA code?

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

| What is the meaning of P1287 HONDA code?

High voltage in the rocker arm oil pressure switch circuit is the generic description for Honda P1287 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Honda OBDII P1287 code.

P1287 VOLKSWAGEN Code – Turbocharger Bypass Valve Open

| P1287 VOLKSWAGEN code possible causes

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

| How is the P1287 VOLKSWAGEN 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 P1287 VOLKSWAGEN code?

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

| What is the meaning of P1287 VOLKSWAGEN code?

Turbocharger Bypass Valve Open is the generic description for Volkswagen code P1287, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Volkswagen P1287 OBDII code.