AutoCodes – Saab – P1303 Saab

P1303 Saab Code - Cylinder 3 Misfiring Detected

Quick Answer

P1303 Saab indicates Cylinder 3 Misfiring Detected. Common causes include Faulty Spark Plug #3, Faulty Ignition Coil 3, Ignition Coil 3 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: P1303 Saab indicates Cylinder 3 Misfiring Detected.
Common causes: Common causes include Faulty Spark Plug #3, Faulty Ignition Coil 3, Ignition Coil 3 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 5,996

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 May 20, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1303 Saab Description

OBDII Code P1303 Saab - Cylinder 3 Misfiring Detected - AutoCodes.com — P1303 Saab Code - Cylinder 3 Misfiring Detected

What does this mean?

What are the Possible Causes of the DTC P1303 Saab?

Faulty Spark Plug #3
Faulty Ignition Coil 3
Ignition Coil 3 harness is open or shorted
Ignition Coil 3 circuit poor electrical connection

How to Fix the DTC P1303 Saab?

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 does this mean?

Code Tech Notes

Ignition monitoring cylinder spark duration too short

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1303 Saab 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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Need Help with the 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.

Frequently Asked Questions about P1303 Saab Code

1. What are the common symptoms of OBDII code P1303 in a Saab, indicating cylinder 3 misfiring?

- Common symptoms include engine misfires, rough idling, loss of power, and potential fuel consumption increase.

2. What are the typical causes of OBDII code P1303 in a Saab related to cylinder 3 misfiring?

- The most common causes are faulty ignition coil, spark plug, fuel injector, vacuum leak, or wiring issues specific to cylinder 3.

3. How can I diagnose the OBDII code P1303 in my Saab if cylinder 3 misfiring is detected?

- Diagnosis involves checking the ignition system components, inspecting the spark plug and fuel injector for cylinder 3, and conducting a compression test if needed.

4. Can a dirty or clogged fuel injector cause OBDII code P1303 in a Saab?

- Yes, a dirty or clogged fuel injector can disrupt fuel delivery to cylinder 3, leading to misfiring and triggering the P1303 code.

5. Is it safe to continue driving with OBDII code P1303 in a Saab indicating cylinder 3 misfiring?

- It is not recommended to drive with a misfiring cylinder as it can cause further damage to the engine and components. Prompt diagnosis and repair are advised.

6. How can I repair OBDII code P1303 in my Saab if cylinder 3 misfiring is detected?

- Repair involves replacing or repairing the faulty ignition coil, spark plug, fuel injector, or addressing any vacuum leaks or wiring issues specific to cylinder 3.

7. Can a bad ignition coil be the sole reason for OBDII code P1303 in a Saab?

- Yes, a malfunctioning ignition coil in cylinder 3 can cause misfiring issues leading to the P1303 code, making it a common culprit.

8. Are there any preventive maintenance tips to avoid OBDII code P1303 in a Saab?

- Regularly servicing the ignition system, changing spark plugs as recommended, using quality fuel, and maintaining proper engine tune-up can help prevent cylinder misfires.

9. Will resetting the OBDII code P1303 in my Saab fix the issue temporarily?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing cylinder 3 misfiring and the P1303 code.

10. How long does it usually take to repair OBDII code P1303 in a Saab at a professional auto repair shop?

- The repair time can vary depending on the specific cause of the misfire, but typically, it may take a few hours to a full day to diagnose and fix the issue.