P0332

Knock Sensor 2 Circuit Low (Bank 2)

Car Fault Codes Ignition & misfire

Can you still drive? Yes, normally

Who can fix it? Needs a workshop

Typical repair time 30 minutes – 4 hours

Typical cost SAR 100 to 900

What it means

The signal from knock sensor 2 on bank 2 is weaker than the minimum the engine computer expects. The most common cause is an open wire, a short to ground or a loose sensor, and the computer retards ignition timing as a precaution.

Symptoms4

Check engine light on.
Weaker acceleration.
Slightly higher fuel consumption.
Often no other clear symptoms.

Possible causes5

Open bank 2 sensor wiring or a disconnected or corroded connector.
Signal wire shorted to ground through damaged insulation.
Loose sensor or one tightened below the required torque.
Failed sensor.
Engine computer fault (rare).

How to diagnose5

Inspect the sensor 2 connector and wiring for breaks, corrosion or damaged insulation.
Check wiring continuity between the sensor and the computer and make sure there is no short to ground.
Measure sensor resistance and compare it with the manufacturer specification.
Confirm the sensor torque.
If P0327 is also stored, check the parts shared by both sensors first.

How to fix5

Reconnect and clean the connector, and repair damaged wiring.
Retighten the sensor to the correct torque.
Replace knock sensor 2 if it is proven faulty.
Replace the harness if the damage cannot be repaired.
Clear the codes, drive and confirm the code does not return.

Repair cost

0–500

500–2,000

2,000–5,000

5,000+

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low for a connector or wire repair and rises with a new sensor, especially if engine parts must be removed to reach it.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions

Should I replace the sensor right away?

No. Check the connector, wiring and torque first, because a broken wire or loose sensor is a common cause of this code and cheaper to fix.

P0327 and P0332 appeared together. What does that mean?

A low signal from both sensors points to a shared fault, such as a connector or harness running near a heat source, rather than both sensors failing together.

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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.

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