What does fault code P0327 mean?

Knock Sensor 1 Circuit Low Input. Knock sensor signal voltage is below expected range.

P0327

Knock Sensor 1 Circuit Low Input

Q: What are the symptoms of P0327?

CEL; Possible spark knock/pinging under load

Q: What are the possible causes of P0327?

Faulty knock sensor; Wiring short; Poor ground

Q: How to fix P0327?

Test sensor and wiring; Replace sensor if faulty

Severity: Medium Ignition System Generic OBD-II Code Est. Repair: $150 - $350

Schedule diagnosis soon. Continued driving may worsen the issue.

Quick Answer

P0327 means “Knock Sensor 1 Circuit Low Input.” Severity: Medium. Estimated repair cost: $150 - $350. Most common sign: CEL.

What Does P0327 Mean?

Knock sensor signal voltage is below expected range.

Common Symptoms

CEL

Possible spark knock/pinging under load

Possible Causes

Faulty knock sensor

Wiring short

Poor ground

How to Fix P0327 – Repair Guide

Test sensor and wiring

Replace sensor if faulty

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Budgeting for This Repair?

A typical P0327 repair runs about $150 - $350. If you'd rather spread the cost over time, estimate the payment with our free sister tool: Car Finance Calculator (50-state sales tax, trade-in equity, full amortization).

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Disclaimer: Information is for educational reference only and does not replace professional diagnosis. Actual causes and costs vary by vehicle make, model, year and condition. Always verify with a qualified technician.