28 – Subaru 1988 MPFI Fuel injected models DTC

Subaru 1988 MPFI Fuel injected models DTC 28 – Knock sensor no. 2 (SVX, left side)

DTC 28 meaning on Subaru 1988 MPFI Fuel injected models

DTC 28 indicates a fault with Knock Sensor no. 2 on the left side of the SVX model for Subaru 1988 MPFI Fuel injected vehicles.

Subaru 1988 MPFI Fuel injected models DTC 28 symptoms

• Engine knocking or pinging noises
• Decreased engine performance or power
• Check Engine Light (CEL) illuminated on the dashboard

Subaru 1988 MPFI Fuel injected models DTC 28 causes

• Defective knock sensor no. 2
• Wiring issues or poor connections related to the knock sensor
• Engine mechanical problems causing false knock sensor readings

Subaru 1988 MPFI Fuel injected models DTC 28 seriousness

The DTC 28 related to the knock sensor no. 2 on the left side of the SVX model for Subaru 1988 MPFI Fuel injected vehicles should be addressed promptly to prevent potential engine damage or decreased performance.

How to diagnose DTC 28 on Subaru 1988 MPFI Fuel injected models

1. Use an OBD-II scanner to retrieve the specific fault code (DTC 28).
2. Inspect the knock sensor wiring and connections for any visible damage or corrosion.
3. Perform a visual inspection of the knock sensor itself for signs of physical damage.
4. Test the knock sensor using a multimeter to check for proper resistance values.

How to fix DTC 28 on Subaru 1988 MPFI Fuel injected models

1. Replace the faulty knock sensor no. 2 on the left side of the SVX model.
2. Repair any damaged wiring or connections related to the knock sensor.
3. Clear the DTC 28 code using an OBD-II scanner after completing the repairs.

How to erase DTC 28 on Subaru 1988 MPFI Fuel injected models

1. Use an OBD-II scanner to access the vehicle’s onboard computer system.
2. Select the option to clear diagnostic trouble codes (DTCs) from the system.
3. Follow the on-screen prompts to confirm the deletion of the DTC 28 code.
4. Ensure that the issue causing the DTC 28 has been resolved before clearing the code.

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