AutoCodes – Saturn – P1400 Saturn

P1400 Saturn Code - Cold Start Emission Reduction Control System

Quick Answer

The catalytic converter must be warmed to efficiently reduce emissions. Common causes include Dirty Throttle Body, Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor. 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: P1400 Saturn indicates Cold Start Emission Reduction Control System.
Common causes: Common causes include Dirty Throttle Body, Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor.
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 2,407

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 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1400 Saturn Description

The catalytic converter must be warmed to efficiently reduce emissions. The cold start strategy is to reduce the amount of time it takes to warm the catalytic converter. During a cold start, the engine idle speed is elevated, and spark timing is retarded to allow the catalyst to warm quickly. This diagnostic monitors the following to build an exhaust energy model: Engine speed, Spark advance, Throttle position, Engine airflow, Engine coolant temperature, Engine runtime, Park/neutral position, Vehicle speed. The actual model is then compared to the expected exhaust energy model. The Diagnostic Trouble Code (DTC) will set when the actual exhaust energy model does not match the expected exhaust energy model.

OBDII Code P1400 Saturn - Cold Start Emission Reduction Control System - AutoCodes.com — P1400 Saturn Code - Cold Start Emission Reduction Control System

What does this mean?

What are the Possible Causes of the DTC P1400 Saturn?

Dirty Throttle Body
Dirty Air Filter
Dirty Mass Air Flow (MAF) Sensor
Intake manifold leak
Exhaust leak
Damaged, restricted, modified or enhanced exhaust system

How to Fix the DTC P1400 Saturn?

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 P1400 Saturn 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 P1400 Saturn code?

Need more information on how to fix the P1400 Saturn code? Get Access to Factory Service Manuals

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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 P1400 Saturn Code

1. What does the OBDII code P1400 on a Saturn indicate?

The code P1400 on a Saturn refers to the Cold Start Emission Reduction Control System.

2. What are the common symptoms of a P1400 code on a Saturn?

Common symptoms of a P1400 code on a Saturn may include rough idling, engine stalling, decreased fuel efficiency, and the illumination of the check engine light.

3. What are the possible causes of a P1400 code on a Saturn?

Potential causes of a P1400 code on a Saturn include a faulty cold start emission reduction control system valve, damaged vacuum lines, a defective EGR valve, or issues with the electrical connections.

4. How can I diagnose a P1400 code on my Saturn?

Diagnosing a P1400 code on a Saturn typically involves using an OBDII scanner to retrieve the code, inspecting the cold start emission reduction control system components for any visible damage, and testing the system's operation.

5. Can I still drive my Saturn with a P1400 code?

It is generally not recommended to drive your Saturn with a P1400 code as it can lead to poor engine performance and potential further damage if left unresolved.

6. How can I repair a P1400 code on my Saturn?

Repairing a P1400 code on a Saturn may involve replacing the faulty cold start emission reduction control system valve, repairing or replacing damaged vacuum lines, checking and cleaning the EGR valve, and ensuring all electrical connections are secure.

7. Will resetting the check engine light resolve a P1400 code on my Saturn?

Simply resetting the check engine light will not fix the underlying issue causing the P1400 code on your Saturn. It is important to diagnose the problem and perform the necessary repairs to clear the code.

8. Are there any DIY tips for addressing a P1400 code on a Saturn?

While some basic inspections and component checks can be done DIY, diagnosing and repairing a P1400 code on a Saturn may require specialized tools and knowledge. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

9. How much does it cost to fix a P1400 code on a Saturn?

The cost of fixing a P1400 code on a Saturn can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of parts needed for repair. It is advisable to obtain quotes from different mechanics to compare prices.

10. Can a P1400 code on a Saturn cause emissions test failure?

Yes, a P1400 code on a Saturn can cause emissions test failure as it indicates a problem with the cold start emission reduction control system, which is essential for reducing harmful emissions during engine start-up.