AutoCodes – MINI – P1340 MINI

P1340 MINI Code - Multiple Cylinder Misfire During Start

Quick Answer

P1340 MINI indicates Multiple Cylinder Misfire During Start. Common causes include Faulty Spark Plug, Faulty Ignition Coil, Intake vacuum leak. 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: P1340 MINI indicates Multiple Cylinder Misfire During Start.
Common causes: Common causes include Faulty Spark Plug, Faulty Ignition Coil, Intake vacuum leak.
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 3,893

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 Aug 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P1340 MINI Description

OBDII Code P1340 MINI - Multiple Cylinder Misfire During Start - AutoCodes.com — P1340 MINI Code - Multiple Cylinder Misfire During Start

What does this mean?

What are the Possible Causes of the DTC P1340 MINI?

Faulty Spark Plug
Faulty Ignition Coil
Intake vacuum leak
Faulty Camshaft Position Sensor
Ignition Coil harness is open or shorted
Ignition Coil circuit poor electrical connection

How to Fix the DTC P1340 MINI?

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 P1340 MINI 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.

Need more information about the P1340 MINI code?

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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.