AutoCodes – Mitsubishi – P1297 Mitsubishi

P1297 Mitsubishi Code - No Change In MAP From Start To Run

Quick Answer

The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects no change in Manifold Absolute Pressure (MAP) sensor voltage. Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Restricted Manifold Absolute Pressure Sensor, Manifold Absolute Pressure Sensor 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: P1297 Mitsubishi indicates No Change In MAP From Start To Run.
Common causes: Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Restricted Manifold Absolute Pressure Sensor, Manifold Absolute Pressure Sensor 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 4,530

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 24, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1297 Mitsubishi Description

The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects no change in Manifold Absolute Pressure (MAP) sensor voltage. The too-small difference is seen between Barometric Pressure with ignition ON (Engine Running) and the manifold vacuum for more than 8.80 seconds.

OBDII Code P1297 Mitsubishi - No Change In MAP From Start To Run - AutoCodes.com — P1297 Mitsubishi Code - No Change In MAP From Start To Run

What does this mean?

What are the Possible Causes of the DTC P1297 Mitsubishi?

Faulty Manifold Absolute Pressure (MAP) Sensor
Restricted Manifold Absolute Pressure Sensor
Manifold Absolute Pressure Sensor harness is open or shorted
Manifold Absolute Pressure Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1297 Mitsubishi?

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 P1297 Mitsubishi 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 P1297 Mitsubishi 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 P1297 Mitsubishi Code

1. What does the OBDII code P1297 mean on a Mitsubishi?

P1297 indicates "No Change in MAP From Start To Run," meaning the Manifold Absolute Pressure (MAP) sensor isn't detecting the expected change in pressure after the engine starts.

2. What are the common symptoms of code P1297 in a Mitsubishi?

Symptoms include poor engine performance, stalling, lack of power, rough idling, and possible illumination of the check engine light.

3. What causes the P1297 code on a Mitsubishi?

The code can be caused by a faulty MAP sensor, vacuum leaks, intake manifold issues, wiring problems, or a malfunctioning ECU.

4. Can a vacuum leak trigger the P1297 code?

Yes, a vacuum leak can prevent the correct pressure change in the intake manifold, which can cause the P1297 code.

5. How do I diagnose the P1297 code on my Mitsubishi?

Start by checking the MAP sensor and its wiring for damage or loose connections. Inspect for vacuum leaks and ensure the intake manifold and throttle body are working properly.

6. Can I still drive my Mitsubishi with a P1297 code?

Driving with a P1297 code is not recommended, as it can result in poor performance, increased fuel consumption, and potential engine damage.

7. How do I fix the P1297 code on a Mitsubishi?

Repairs may include replacing the MAP sensor, repairing vacuum leaks, fixing intake manifold issues, or addressing wiring or ECU problems.

8. How can I test the MAP sensor for a P1297 code?

Use a multimeter to check the MAP sensor's voltage output and compare it to the manufacturerâ€™s specifications while monitoring for changes as engine conditions vary.

9. How much does it cost to fix a P1297 code?

Repair costs vary, but replacing a MAP sensor typically ranges from $100 to $300, while fixing vacuum leaks or wiring issues may cost less or more depending on the complexity.

10. Can a bad ECU cause the P1297 code?

Yes, a malfunctioning ECU can fail to process MAP sensor data correctly, leading to the P1297 code, though this is less common than sensor or vacuum issues.