P0105 – Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction

Introduction

The P0105 error code on Chery is a fairly common issue that many drivers face.

The P0105 trouble code is associated with the engine control system, specifically the MAP and BARO sensors, which play a crucial role in measuring the air pressure inside the intake manifold and the atmospheric pressure. The **Chery P0105** code indicates a malfunction in the circuit, which can affect the engine’s performance, fuel efficiency, and overall drivability.

What Does Code P0105 Mean

The technical meaning of the P0105 error code is a malfunction in the Manifold Absolute Pressure/Barometric Pressure Circuit. This code is often linked to issues with the MAP or BARO sensor, wiring, or the Engine Control Module (ECM). The affected system is the engine control system, which relies on accurate pressure readings to adjust fuel injection, ignition timing, and other critical parameters. The impact on engine performance can be significant, leading to decreased power, poor fuel efficiency, and potentially causing the engine to stall or run rough.

Common Chery Models Affected

The P0105 error code can affect various Chery models, including:

• Chery Tiggo
• Chery Arrizo
• Chery Fulwin
• Chery Cowin
• Chery Kimo

Symptoms Table

The following symptoms may be associated with the P0105 error code:

Causes Table

The following potential causes may be associated with the P0105 error code:

Real-World Driving Scenarios

When driving with the P0105 error code, the driver may experience issues during cold start, acceleration, or idle. The engine may stall or run rough, and fuel consumption may increase. On the highway, the vehicle may experience decreased power output, making it difficult to maintain speed. In some cases, the issue may only be noticeable during specific driving conditions, such as when the engine is under heavy load or when the vehicle is driven in extreme temperatures.

Diagnostic Steps

To diagnose the P0105 code, follow these steps:
1. IF the Check Engine Light (CEL) is illuminated, THEN use a scan tool to retrieve the trouble code and any related data.
2. IF the scan tool data indicates a MAP or BARO sensor issue, THEN inspect the sensor and wiring for any signs of damage or corrosion.
3. IF the sensor and wiring appear to be in good condition, THEN use a multimeter to check the voltage and resistance of the circuit.
4. IF the circuit appears to be functioning correctly, THEN use a scan tool to monitor the MAP and BARO sensor data in real-time.
5. IF the data indicates a malfunction, THEN replace the faulty sensor or repair the wiring issue.

Common Diagnostic Mistakes

When diagnosing the P0105 code, common mistakes include:
1. Failing to inspect the wiring and connectors for damage or corrosion.
2. Not using a scan tool to retrieve trouble codes and data.
3. Replacing the MAP or BARO sensor without verifying the circuit is functioning correctly.
4. Not checking for vacuum leaks or intake manifold issues.
5. Failing to consult the repair manual or manufacturer’s instructions.

When Not to Replace the Sensor

Replacing the MAP or BARO sensor may not solve the issue if:
1. The wiring or circuit is damaged or corroded.
2. There are vacuum leaks or intake manifold issues.
3. The ECM is malfunctioning or has a software issue.
4. The air filter is clogged or dirty.
In these cases, addressing the underlying issue is necessary to resolve the P0105 code.

How to Fix

To fix the P0105 code, follow these steps:
1. Inspect and repair any wiring or circuit issues.
2. Replace the faulty MAP or BARO sensor.
3. Address any vacuum leaks or intake manifold issues.
4. Update the ECM software or replace the module if necessary.
5. Clean or replace the air filter.

Severity Level

The P0105 error code has a **medium severity level**, as it can cause decreased engine performance, poor fuel efficiency, and potentially lead to more severe issues if left unaddressed. The driving risk is **medium**, and the urgency of repair is **soon**, as the issue can worsen over time.

Is it Safe to Drive with this Code

Driving with the P0105 code is not recommended, as it can cause decreased engine performance, poor fuel efficiency, and potentially lead to more severe issues. However, if the issue is not severe, it may be possible to drive the vehicle for a short distance to a repair shop. It is essential to monitor the engine’s performance and watch for any signs of worsening conditions.

Estimated Repair Cost

The estimated repair cost for the P0105 code can range from $200 to $1,000, depending on the cause of the issue and the necessary repairs.

Preventive Maintenance Tips

To prevent the P0105 code from occurring, regular maintenance is essential. This includes:
1. Regularly inspecting the wiring and connectors for damage or corrosion.
2. Replacing the air filter regularly.
3. Checking for vacuum leaks or intake manifold issues.
4. Updating the ECM software regularly.

Expert Mechanic Note

Tools Required for Diagnostics

The following tools are required for diagnosing the P0105 code:

• Scan tool
• Multimeter
• Wiring diagram
• Repair manual

Technical Reference Values

The following technical reference values are relevant for diagnosing the P0105 code:

FAQ

1. What does code P0105 mean?
The **P0105 error** code indicates a malfunction in the Manifold Absolute Pressure/Barometric Pressure Circuit. This code is often linked to issues with the MAP or BARO sensor, wiring, or the Engine Control Module (ECM). When **diagnosing the P0105 code**, it’s essential to use a scan tool to retrieve trouble codes and data.
2. Is it safe to drive with code P0105?
Driving with the **P0105 trouble code** is not recommended, as it can cause decreased engine performance, poor fuel efficiency, and potentially lead to more severe issues. However, if the issue is not severe, it may be possible to drive the vehicle for a short distance to a repair shop. The **Chery P0105** code requires urgent attention to prevent potential damage to the engine.
3. Will the code clear itself?
The **P0105 error** code will not clear itself and requires diagnosis and repair to resolve the issue. **Fixing the P0105 code** involves identifying the root cause of the problem and addressing it accordingly.
4. Does the sensor need replacement?
The MAP or BARO sensor may need replacement if it’s faulty or malfunctioning. However, it’s essential to verify the circuit is functioning correctly before replacing the sensor. **Diagnosing the P0105 code** requires a thorough inspection of the wiring and connectors for damage or corrosion.
5. How much does it cost to fix?
The estimated repair cost for the **P0105 code** can range from $200 to $1,000, depending on the cause of the issue and the necessary repairs. **Fixing the P0105 code** may involve replacing the faulty sensor, repairing the wiring, or updating the ECM software.

Related Trouble Codes

The following trouble codes are related to the P0105 code:

• Error P0068 on Chery — indicates a malfunction in the MAP sensor circuit
• Error P0113 on Chery — indicates a malfunction in the BARO sensor circuit
• Error P0123 on Chery — indicates a malfunction in the throttle position sensor circuit