## Frequent Vehicle Error Codes

### P0420 Emissions Control Malfunction

– Common Causes:

Faulty oxygen sensor [1]

– Common Solutions:

Replace catalytic converter https://carautorepair.site/

### P0171 System Too Lean

– Possible Defects:

Faulty MAF sensor

– Troubleshooting Process:

Check fuel pressure [1][7]

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## Car Maintenance Terms

### Electronic Braking System

– Purpose: Prevents wheel lockup [7]

### ECM/ECU (Engine Control Module)

– Responsibility: Manages fuel injection [7]

### Powertrain Elements

– Includes: Transmission [7]

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## Mechanical Fixing Workflow

1. **Problem Identification**:

Perform visual inspection

2. **Component Testing**:

Check voltage

3. **Component Installation**:

Clear error codes

4. **System Validation**:

Test drive vehicle

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## Essential Tools

| **Tool Type** | **Examples** | **Purpose** |

|—|—|—|

| Code Reader | Innova | Live data streaming |

| Mechanical Tools | Smoke machine | Component repair |

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## Technical Data Resources

### Mechanical Information System

– Features:

Component locations [8]

Factory repair procedures

### Digital Assistants

– Auto Repair Documents:

Electrical diagrams [5]

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## Affordable Maintenance Advice

– Regular maintenance avoids costly repairs

– Learn basic diagnostics to prevent mechanic overselling

– Use aftermarket parts when budget constrained [7]