AutoCodes – Acura – P1320 Acura

P1320 Acura Code - Super Knock

Quick Answer

In case of pre-ignition is detected, a counter to enable the measurement of fuel enrichment will be incremented. Common causes include Faulty Spark Plug, Faulty Ignition Coil, Ignition Coil harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1320 Acura indicates Super Knock.
Common causes: Common causes include Faulty Spark Plug, Faulty Ignition Coil, Ignition Coil harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 57

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 02, 2025

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
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Code P1320 Acura Description

In case of pre-ignition is detected, a counter to enable the measurement of fuel enrichment will be incremented. If the counter exceeds a specified value of pre-ignition, the Powertrain Control Module (PCM) demands fuel enrichment and stores a DTC.

OBDII Code P1320 Acura - Super Knock - AutoCodes.com — P1320 Acura Code - Super Knock

What does this mean?

What are the Possible Causes of the DTC P1320 Acura?

Faulty Spark Plug
Faulty Ignition Coil
Ignition Coil harness is open or shorted
Ignition Coil circuit poor electrical connection

How to Fix the DTC P1320 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1320 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.